When the water temperature drops, dive in with the NEOSPORT(R) 1mm Sport Hood. A thick, neoprene construction maximizes warmth so you can dive, snorkel or swim all year 'round! The VELCRO(R) brand closure system along the chin strap provides a fit that stays in place, while the flatlock seams keep you comfortable throughout your next adventure. FEATURES: Locks in the heat during cold-water sports and activities Designed for use during water and paddle sports Adult fit Constructed with premium neoprene Neoprene material maximizes warmth 1mm thickness Chin strap with D-ring and VELCRO(R) brand closure system Anatomical fit Flatlock seams deliver seamless comfort Model # SH25V NEOSPORT VELCRO(R) is a registered trademark of Velcro BVBA, used with permission. SIZING: Measure the circumference of the head at the spot a headband is worn. X-Small: 19" Small: 20" Medium: 22" Large: 23" X-Large: 24" XX-Large: 25" XXX-Large: 26"