Designed to provide an excellent combination of flexibility, warmth and comfort for water sports in moderately cold waters. With a 3/2mm neoprene thickness, these boots are ideal for cooler but not extremely cold conditions, while providing the necessary protection and freedom of movement. O’NEILL’S EXTERIOR FLUID SEAM WELD is a revolutionary seam construction that utilizes a non-chafing high-grade, silicone-based urethane applied in liquid form to outside of a glued and blindstitched seam completely blocking out water without restricting flexibility