Want to add warmth and protection to your hoodless suit? The Waterproof brand blends an anatomically sculpted, 2mm undervest with the trend-setting, next generation H1 Hood 3/5mm featuring H.A.V.S technology. A perfect fit for all suits without a fixed hood, this undervest is crafted from 100% microcell CR neoprene. Although sold at a higher price point, this is in fact the only neoprene that really works for diving, exhibiting excellent durability and insulation which outshines other neoprene qualities, like SBR, SCR etc.