W7 NEOPRENE NECK SEAL Detachable neck seal that eliminates water flow when diving without a hood. This is for use with the W7 5mm & 7mm Wetsuits. • Colour: Black • Sizes Available: Men XXS-S, M-L, XL-3XL Ladies XXS-S, M-L, XL-3XL Neck circumference (cm) Men (XXS-S) 36-39, (M-L) 39-42, (XL-3XL) 42-46 Ladies (XXS-S) 31-33, (M-L) 33-36, (XL-3XL) 36-39