During all Waterproof's years of continuous testing in harsh conditions, they have found that nothing can match the 3.5mm special Hi-Dense neoprene with SD Toughtex lining that Waterproof use for their most outstanding neoprene product, the D10 PRO Dry Suit. Loaded with features this suit has it all, Kevlar reinforced and angled boot, zip armored dry zipper, SAS Zip cuff system, embossed, polyurethane (PU) reinforced shoulders and double pockets to mention a few. And all the know-how that Waterproof brings from 25 years' experience of diving in the Antarctic & Arctic. Anatomical Sculpting - with 3 dimensionally sculpted arms and legs D10 PRO provides an anatomical fit designed for human movement. Hood Air Vent System (HAVS), a separated vented hood fits underneath the warm neck collar. Waterproofs exclusive hood air venting system uses a one-way valve to vent annoying gas buildup in the hood. The HAVS hood features a 7mm double layered protection in critical heat loss areas and glide skin seals for the neck and face. Because of the shaping of the D10 PRO, no seams are to be found in the under arm area or in the crotch area, where wrinkling can otherwise cause wear. Warm Neck Value - Waterproof has improved their frequently imitated warm neck design with the addition of a double value to drain the seal area when you surface. A seat that grips - Polyurethane embossing in the back provides a no-slip grip and integrated abrasion protection. Power Pockets - Dual