GNU Something 156 - Snowboard

Name: GNU Something 156 - Snowboard
Brand: GNU
SKU: 167740
Price: 490.46 EUR
Availability: InStock

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The 2025 GNU SOMETHING GNU 156 is a great leap forward for mankind... Gnu was credited by TWS mag as being the first brand to market deep carving sidecuts intended for resort hardpack terrain, which was a critical step as snowboards evolved from finned backcountry powder designs only, to modern all terrain “directional device” resort atvs. Something Gnu takes the inspiration of Mike Olsons early 80s’ finless designs and adds in all we have learned over the past 40 years of Gnu board building. Fine tuned progressive sidecuts provide forgiving turn entry and finlike hold in the tail allowing deep powerful trenched carving on hardpack and ice. A long smooth tip entry floats the pow effortlessly on those special days and the swallow tail and taper settles nicely adding even more control and float. A modern directional C2 contour works in harmony with tip and entry sidecut for easy turn entry and the tight shorter camber adds hold in the tail for radical resort power carving. “Drifty Snowboards aren’t delicious... business casual in the front, power party in the back!

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Size chart

Wetsuits

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.
Waist: measure around your natural waist.

Men's models

The letter after the size indicates height: S – short, T – tall.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
SS	166-171	59-68	95-99	75-79
S	173-178	61-70	95-99	75-79
ST	183-188	66-75	95-99	75-79
MS	169-174	66-75	99-104	79-84
M	175-180	70-77	99-104	79-84
MT	185-191	73-82	99-104	79-84
LS	171-177	73-82	104-110	84-89
L	178-183	77-86	104-110	84-89
LT	188-193	82-91	104-110	84-89
XLS	174-179	82-91	110-117	89-94
XL	180-185	86-95	110-117	89-94
XLT	191-196	91-100	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112
4XL	185-193	113-122	130-136	112-122

Women's models

The letter after the size indicates height: S – short, T – tall.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2	155-160	41-48	76-81	62-67
4	160-165	45-52	77-83	64-69
6S	159-164	48-54	80-85	66-71
6	163-168	50-57	80-85	66-71
6T	166-171	52-59	80-85	66-71
8S	161-166	52-59	83-88	69-74
8	165-170	54-61	83-88	69-74
8T	169-174	57-64	83-88	69-74
10S	164-169	57-66	86-91	74-77
10	168-173	59-68	86-91	74-77
10T	171-177	61-70	86-91	74-77
12	170-175	64-73	90-95	77-81
14	173-178	68-77	94-99	79-85
16	175-180	75-84	98-103	85-89

Kids' models

Kids' sizes are by age: 8 = 8Y = 8 years.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

Rash guards and UV protection tops

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.
Waist: measure around your natural waist.

Men's models

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
S	173-178	61-70	95-99	75-79
M	175-180	70-77	99-104	79-84
L	178-183	77-86	104-110	84-89
XL	180-185	86-95	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112

Women's models

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	160-165	45-52	77-83	64-69
XS	163-168	50-57	80-85	66-71
S	165-170	54-61	83-88	69-74
M	168-173	59-68	86-91	74-77
L	170-175	64-73	90-95	77-81
XL	173-178	68-77	94-99	79-85
2XL	175-180	75-84	98-103	85-89

Kids' models

Kids' sizes are by age: 8 = 8Y = 8 years. 6M, 12M, 18M are in months.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
6M	58-68.5	5-7.5	43	42-44.5
12M	68.5-73.5	7.5-10	46	44.5-47
18M	73.5-79	10-12	48	47-49.5
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

Neoprene boots

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

O'Neill size	EU size	UK size	NEOSOCK neoprene sock
5	36	4	XS
6	37/38	5	XS
7	39	6	S
8	40	7	S
9	41/42	8	M
10	43	9	M
11	44	10	L
12	45	11	L
13	46	12	XL
14	47/48	13	XL

Neoprene hoods and caps

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

O'Neill size	Neck circumference (cm)	Head circumference (cm)
XS	36-38	48-53
S	37-39	51-56
M	38-41	53-58
L	39-42	56-61
XL	41-43	58-64
2XL	42-44	61-66

Neoprene gloves

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Hand length: from the base of the palm (at the wrist) to the tip of the middle finger.
Hand circumference: across the knuckles, excluding the thumb.

O'Neill size	Hand length (cm)	Hand circumference (cm)
2XS	15.2-16.5	16.5-17.8
XS	16.5-17.8	17.8-19.1
S	17.8-19.1	19.1-20.3
M	19.1-20.3	20.3-21.6
L	20.3-21.6	21.6-22.9
XL	21.6-22.9	22.9-24.1
2XL	22.9-24.1	24.1-25.4

Impact vests

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.

Men's and unisex models

O'Neill size	Weight (kg)	Chest (cm)
XS	57-64	93-95
S	61-70	95-99
M	70-77	99-104
L	77-86	104-110
XL	86-95	110-117
2XL	95-104	117-123
3XL	104-113	123-130

Women's models

O'Neill size	Weight (kg)	Chest (cm)
4	45-52	77-83
6	50-57	80-85
8	54-61	83-88
10	59-68	86-91
12	64-73	90-95

ISO 50N life vests

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

ISO 50N vests (Superlite, Multisport) are unisex. Choose the size by weight and chest.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.

O'Neill size	Weight (kg)	Chest (cm)
XS	40-50	70-80
S	50-60	80-90
M	60-70	90-100
L	> 70	100-110
XL	> 70	110-120
2XL	> 70	120-130
3XL	> 70	130-140

TOBE apparel: jackets, bibs, pants

This chart is from the manufacturer, TOBE. If your measurements fall between two sizes, take the larger one.

Height: barefoot, from the floor to the top of your head.
Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.
Waist: measure around your natural waist.
Hips: around the fullest part of your hips.
Inseam: from the crotch to the floor, barefoot.

XXS = 2XS, XXL = 2XL.

Men's and unisex models

Size	Height (cm)	Chest (cm)	Waist (cm)	Hips (cm)	Inseam (cm)
2XS	163-169	81-86	67-72	82-87	78-82
XS	166-173	86-91	72-77	87-92	80-84
S	170-177	91-96	77-83	92-97	82-86
M	174-182	96-101	83-90	97-103	84-88
L	179-186	101-108	90-98	103-110	86-90
XL	183-191	108-115	98-106	110-117	88-92
2XL	188-195	115-123	106-115	117-125	90-94

Women's models (Ekta)

Size	Height (cm)	Chest (cm)	Waist (cm)	Hips (cm)	Inseam (cm)
2XS	158-162	78-85	63-69	84-89	76-80
XS	159-167	85-90	69-74	89-95	78-82
S	164-172	90-96	74-79	95-102	80-84
M	169-179	96-103	79-85	102-109	82-86
L	176-183	103-111	85-93	109-117	84-88

Ski and snowboard helmets

This chart is from the manufacturer, Smith. If your measurements fall between two sizes, take the larger one.

Head circumference: with a tape measure around your head, about 2 cm above the eyebrows and ears, across the widest part of the back of the head.

Round Contour Fit is a cut for a rounder head; its range is one size up. Racing models and the women's Vida in size L are 59-61 cm.

Size	Head circumference (cm)
S	51-55
S – Round Contour Fit	55-59
M	55-59
M – Round Contour Fit	59-63
L	59-63
L – racing models	59-61
L – Vida	59-61
L – Round Contour Fit	63-67
XL	63-67

Bike helmets

This chart is from the manufacturer, Smith. If your measurements fall between two sizes, take the larger one.

Head circumference: with a tape measure around your head, about 2 cm above the eyebrows and ears, across the widest part of the back of the head.

Size	Head circumference (cm)
XS	48-52
S	51-55
M	55-59
L	59-62
XL	61-65

Snowboard boots

This chart is from the manufacturer, Northwave. If your measurements fall between two sizes, take the larger one.

Foot length (mondo): stand on a sheet of paper, mark your heel and your longest toe, and measure the distance. Mondo is this length, in mm or cm depending on the column.

Our shoe sizes are given in mondo / EU / US. The US size differs between men's and women's models – match by mondo or EU.

Mondo (mm)	EU	US men's	US women's
220	34	3	5
225	35	4.5	5.5
230	36	5	6
235	37	5.5	6.5
240	37.5	6	7
245	38	6.5	7.5
250	39	7	8
255	40	7.5	8.5
260	40.5	8	9
265	41	8.5	9.5
270	42	9	10
275	42.5	9.5	10.5
280	43	10	11
285	43.5	10.5	11.5
290	44	11	–
295	45	11.5	–
300	46	12	–
305	47	13	–
310	48	14	–
315	49	15	–

Step On: boots and bindings

This chart is from the manufacturer, Burton. If your measurements fall between two sizes, take the larger one.

Foot length (mondo): stand on a sheet of paper, mark your heel and your longest toe, and measure the distance. Mondo is this length, in mm or cm depending on the column.

Step On bindings work only with Step On boots, and vice versa. Men's and women's Step On parts cannot be mixed – this can cause damage and put your safety at risk.

Men's boots

US men's	EU	UK	Mondo (cm)
6	38	5	24
6.5	39	5.5	24.5
7	40	6	25
7.5	40.5	6.5	25.5
8	41	7	26
8.5	41.5	7.5	26.5
9	42	8	27
9.5	42.5	8.5	27.5
10	43	9	28
10.5	43.5	9.5	28.5
11	44	10	29
11.5	44.5	10.5	29.5
12	45	11	30
13	46	12	31
14	47	13	32
15	48	14	33

Women's boots

US women's	EU	UK	Mondo (cm)
4	34	2	21
5	35	3	22
5.5	36	3.5	22.5
6	36.5	4	23
6.5	37	4.5	23.5
7	38	5	24
7.5	39	5.5	24.5
8	40	6	25
8.5	40.5	6.5	25.5
9	41	7	26
9.5	41.5	7.5	26.5
10	42	8	27
10.5	42.5	8.5	27.5
11	43	9	28

Men's Step On bindings

Binding size	US men's shoe	EU shoe	UK shoe	Mondo (cm)
S	6-8	38-41	5-7	24-26
M	8.5-10.5	41.5-43.5	7.5-9.5	26.5-28.5
L	11-13	44-46	10-12	29-31
XL	14-15	47-48	13-14	32-33

Women's Step On bindings

Binding size	US women's shoe	EU shoe	UK shoe	Mondo (cm)
S	5-6	35-36.5	3-4	22-23
M	6.5-8.5	37-40.5	4.5-6.5	23.5-25.5
L	9-11	41-42	7-8	26-27

Hitchhiker splitboard bindings

This chart is from the manufacturer, Burton. If your measurements fall between two sizes, take the larger one.

Foot length (mondo): stand on a sheet of paper, mark your heel and your longest toe, and measure the distance. Mondo is this length, in mm or cm depending on the column.

Binding size	US men's shoe	US women's shoe	EU shoe	Mondo (cm)
XS	6-7	6-8	36-38.5	23.5-25
S	7-8	8-10	38.5-41	25-26
M	8-10.5	10+	42+	26-28
L	11+	–	43.5+	28+

Size chart

Wetsuits

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.
Waist: measure around your natural waist.

Men's models

The letter after the size indicates height: S – short, T – tall.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
SS	166-171	59-68	95-99	75-79
S	173-178	61-70	95-99	75-79
ST	183-188	66-75	95-99	75-79
MS	169-174	66-75	99-104	79-84
M	175-180	70-77	99-104	79-84
MT	185-191	73-82	99-104	79-84
LS	171-177	73-82	104-110	84-89
L	178-183	77-86	104-110	84-89
LT	188-193	82-91	104-110	84-89
XLS	174-179	82-91	110-117	89-94
XL	180-185	86-95	110-117	89-94
XLT	191-196	91-100	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112
4XL	185-193	113-122	130-136	112-122

Women's models

The letter after the size indicates height: S – short, T – tall.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2	155-160	41-48	76-81	62-67
4	160-165	45-52	77-83	64-69
6S	159-164	48-54	80-85	66-71
6	163-168	50-57	80-85	66-71
6T	166-171	52-59	80-85	66-71
8S	161-166	52-59	83-88	69-74
8	165-170	54-61	83-88	69-74
8T	169-174	57-64	83-88	69-74
10S	164-169	57-66	86-91	74-77
10	168-173	59-68	86-91	74-77
10T	171-177	61-70	86-91	74-77
12	170-175	64-73	90-95	77-81
14	173-178	68-77	94-99	79-85
16	175-180	75-84	98-103	85-89

Kids' models

Kids' sizes are by age: 8 = 8Y = 8 years.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

Rash guards and UV protection tops

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.
Waist: measure around your natural waist.

Men's models

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	168-173	52-59	90-93	70-72
XS	170-175	57-64	93-95	72-75
S	173-178	61-70	95-99	75-79
M	175-180	70-77	99-104	79-84
L	178-183	77-86	104-110	84-89
XL	180-185	86-95	110-117	89-94
2XL	183-188	95-104	117-123	94-99
3XL	183-191	104-113	123-130	99-112

Women's models

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
2XS	160-165	45-52	77-83	64-69
XS	163-168	50-57	80-85	66-71
S	165-170	54-61	83-88	69-74
M	168-173	59-68	86-91	74-77
L	170-175	64-73	90-95	77-81
XL	173-178	68-77	94-99	79-85
2XL	175-180	75-84	98-103	85-89

Kids' models

Kids' sizes are by age: 8 = 8Y = 8 years. 6M, 12M, 18M are in months.

O'Neill size	Height (cm)	Weight (kg)	Chest (cm)	Waist (cm)
6M	58-68.5	5-7.5	43	42-44.5
12M	68.5-73.5	7.5-10	46	44.5-47
18M	73.5-79	10-12	48	47-49.5
1	88-98	11-13.5	48-53	45.5-51
2	98-108	13.5-16	51-56	48-53
3	108-118	16-18	53-58	51-56
4	118-126	18-25	58-64	51-56
6	126-133	22.5-29.5	62-67	55-60
8	133-141	27-34	66-71	58-64
10	141-147	34-41	71-76	58-64
12	147-155	41-48	74-79	64-69
14	155-163	48-54.5	79-84	69-74
16	163-170	54.5-61	84-89	71-76

Neoprene boots

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

O'Neill size	EU size	UK size	NEOSOCK neoprene sock
5	36	4	XS
6	37/38	5	XS
7	39	6	S
8	40	7	S
9	41/42	8	M
10	43	9	M
11	44	10	L
12	45	11	L
13	46	12	XL
14	47/48	13	XL

Neoprene hoods and caps

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

O'Neill size	Neck circumference (cm)	Head circumference (cm)
XS	36-38	48-53
S	37-39	51-56
M	38-41	53-58
L	39-42	56-61
XL	41-43	58-64
2XL	42-44	61-66

Neoprene gloves

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Hand length: from the base of the palm (at the wrist) to the tip of the middle finger.
Hand circumference: across the knuckles, excluding the thumb.

O'Neill size	Hand length (cm)	Hand circumference (cm)
2XS	15.2-16.5	16.5-17.8
XS	16.5-17.8	17.8-19.1
S	17.8-19.1	19.1-20.3
M	19.1-20.3	20.3-21.6
L	20.3-21.6	21.6-22.9
XL	21.6-22.9	22.9-24.1
2XL	22.9-24.1	24.1-25.4

Impact vests

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.

Men's and unisex models

O'Neill size	Weight (kg)	Chest (cm)
XS	57-64	93-95
S	61-70	95-99
M	70-77	99-104
L	77-86	104-110
XL	86-95	110-117
2XL	95-104	117-123
3XL	104-113	123-130

Women's models

O'Neill size	Weight (kg)	Chest (cm)
4	45-52	77-83
6	50-57	80-85
8	54-61	83-88
10	59-68	86-91
12	64-73	90-95

ISO 50N life vests

This chart is from the manufacturer, O'Neill. If your measurements fall between two sizes, take the larger one.

ISO 50N vests (Superlite, Multisport) are unisex. Choose the size by weight and chest.

Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.

O'Neill size	Weight (kg)	Chest (cm)
XS	40-50	70-80
S	50-60	80-90
M	60-70	90-100
L	> 70	100-110
XL	> 70	110-120
2XL	> 70	120-130
3XL	> 70	130-140

TOBE apparel: jackets, bibs, pants

This chart is from the manufacturer, TOBE. If your measurements fall between two sizes, take the larger one.

Height: barefoot, from the floor to the top of your head.
Chest: with your arms relaxed at your sides, measure around the fullest part of your chest.
Waist: measure around your natural waist.
Hips: around the fullest part of your hips.
Inseam: from the crotch to the floor, barefoot.

XXS = 2XS, XXL = 2XL.

Men's and unisex models

Size	Height (cm)	Chest (cm)	Waist (cm)	Hips (cm)	Inseam (cm)
2XS	163-169	81-86	67-72	82-87	78-82
XS	166-173	86-91	72-77	87-92	80-84
S	170-177	91-96	77-83	92-97	82-86
M	174-182	96-101	83-90	97-103	84-88
L	179-186	101-108	90-98	103-110	86-90
XL	183-191	108-115	98-106	110-117	88-92
2XL	188-195	115-123	106-115	117-125	90-94

Women's models (Ekta)

Size	Height (cm)	Chest (cm)	Waist (cm)	Hips (cm)	Inseam (cm)
2XS	158-162	78-85	63-69	84-89	76-80
XS	159-167	85-90	69-74	89-95	78-82
S	164-172	90-96	74-79	95-102	80-84
M	169-179	96-103	79-85	102-109	82-86
L	176-183	103-111	85-93	109-117	84-88

Ski and snowboard helmets

This chart is from the manufacturer, Smith. If your measurements fall between two sizes, take the larger one.

Head circumference: with a tape measure around your head, about 2 cm above the eyebrows and ears, across the widest part of the back of the head.

Round Contour Fit is a cut for a rounder head; its range is one size up. Racing models and the women's Vida in size L are 59-61 cm.

Size	Head circumference (cm)
S	51-55
S – Round Contour Fit	55-59
M	55-59
M – Round Contour Fit	59-63
L	59-63
L – racing models	59-61
L – Vida	59-61
L – Round Contour Fit	63-67
XL	63-67

Bike helmets

This chart is from the manufacturer, Smith. If your measurements fall between two sizes, take the larger one.

Head circumference: with a tape measure around your head, about 2 cm above the eyebrows and ears, across the widest part of the back of the head.

Size	Head circumference (cm)
XS	48-52
S	51-55
M	55-59
L	59-62
XL	61-65

Snowboard boots

This chart is from the manufacturer, Northwave. If your measurements fall between two sizes, take the larger one.

Foot length (mondo): stand on a sheet of paper, mark your heel and your longest toe, and measure the distance. Mondo is this length, in mm or cm depending on the column.

Our shoe sizes are given in mondo / EU / US. The US size differs between men's and women's models – match by mondo or EU.

Mondo (mm)	EU	US men's	US women's
220	34	3	5
225	35	4.5	5.5
230	36	5	6
235	37	5.5	6.5
240	37.5	6	7
245	38	6.5	7.5
250	39	7	8
255	40	7.5	8.5
260	40.5	8	9
265	41	8.5	9.5
270	42	9	10
275	42.5	9.5	10.5
280	43	10	11
285	43.5	10.5	11.5
290	44	11	–
295	45	11.5	–
300	46	12	–
305	47	13	–
310	48	14	–
315	49	15	–

Step On: boots and bindings

This chart is from the manufacturer, Burton. If your measurements fall between two sizes, take the larger one.

Foot length (mondo): stand on a sheet of paper, mark your heel and your longest toe, and measure the distance. Mondo is this length, in mm or cm depending on the column.

Step On bindings work only with Step On boots, and vice versa. Men's and women's Step On parts cannot be mixed – this can cause damage and put your safety at risk.

Men's boots

US men's	EU	UK	Mondo (cm)
6	38	5	24
6.5	39	5.5	24.5
7	40	6	25
7.5	40.5	6.5	25.5
8	41	7	26
8.5	41.5	7.5	26.5
9	42	8	27
9.5	42.5	8.5	27.5
10	43	9	28
10.5	43.5	9.5	28.5
11	44	10	29
11.5	44.5	10.5	29.5
12	45	11	30
13	46	12	31
14	47	13	32
15	48	14	33

Women's boots

US women's	EU	UK	Mondo (cm)
4	34	2	21
5	35	3	22
5.5	36	3.5	22.5
6	36.5	4	23
6.5	37	4.5	23.5
7	38	5	24
7.5	39	5.5	24.5
8	40	6	25
8.5	40.5	6.5	25.5
9	41	7	26
9.5	41.5	7.5	26.5
10	42	8	27
10.5	42.5	8.5	27.5
11	43	9	28

Men's Step On bindings

Binding size	US men's shoe	EU shoe	UK shoe	Mondo (cm)
S	6-8	38-41	5-7	24-26
M	8.5-10.5	41.5-43.5	7.5-9.5	26.5-28.5
L	11-13	44-46	10-12	29-31
XL	14-15	47-48	13-14	32-33

Women's Step On bindings

Binding size	US women's shoe	EU shoe	UK shoe	Mondo (cm)
S	5-6	35-36.5	3-4	22-23
M	6.5-8.5	37-40.5	4.5-6.5	23.5-25.5
L	9-11	41-42	7-8	26-27

Hitchhiker splitboard bindings

This chart is from the manufacturer, Burton. If your measurements fall between two sizes, take the larger one.

Foot length (mondo): stand on a sheet of paper, mark your heel and your longest toe, and measure the distance. Mondo is this length, in mm or cm depending on the column.

Binding size	US men's shoe	US women's shoe	EU shoe	Mondo (cm)
XS	6-7	6-8	36-38.5	23.5-25
S	7-8	8-10	38.5-41	25-26
M	8-10.5	10+	42+	26-28
L	11+	–	43.5+	28+

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GNU Something is definitely something, and a very interesting one. It is a clearly directional freeride board with a big nod to the early history of GNU and the ideas of Mike Olson.

The directional C2, the long smooth nose with an easy entry, the swallow tail, the tapered shape and 4" of setback say one very clear thing: powder.

The swallow tail lets the back sink more easily, the nose float, and the rider stand more naturally on the board instead of constantly loading the back foot.

But the Something is not just a powder toy. The progressive sidecut radius and Magne-Traction make it very capable on hardpack and when carving, which turns the model into a real historic idea made with modern technology.

Key specs: directional C2; long-entry nose; swallow tail; tapered shape; 4" setback; progressive sidecut radius; Magne-Traction; G Lite 3; Carbon Power Bands; Knife Cut sintered base.

Review on the blog: GNU Something review: a swallow tail for powder and carving

Sizes

Size	Contact length	Waist	Sidecut radius	Stance (min-max / setback)	Flex (1–10)	Rider weight
156 cm	108 cm	25.3 cm	6.66 / 6 m	45-57 / 10 cm	6.5	from 50 kg
161 cm	112 cm	26.1 cm	6.66 / 6 m	48.9-60.9 / 10 cm	6.5	from 65 kg

The size is not chosen by length alone. Weight, surface area, waist, profile and effective edge length together tell how a board will work. The table shows the lower weight limit that Mervin gives for each size. A shorter board turns faster and is more playful; a longer one brings more stability and float. The waist should match the boot: at about 24-25 cm the boots are usually up to size 42-43 (EU), at 25-26 cm up to 44-45, and the W versions are for a bigger foot, so that toes and heel do not drag when carving.

Not sure which size? Write to us or stop by our shop in Golo Bardo – we have been riding this stuff since 1997.