Rip Curl H-Bomb Power Heated Vest WVWOHM. Introducing the H-Bomb heated vest into the H-Bomb wetsuit line. The H-Bomb vest uses the proven technology and durability of the H-Bomb full suits in a versatile E3 vest that can be worn under any wetsuit. This is the absolute ultimate in power heated vests and uses only the very best materials and components, and is water-proofed to the high standard needed for serious in-surf use. Made from E3 0.3mm neoprene, the best neo available sliced as thin as possible to reduce bulk under the wetsuit. Side zip entry, reducing stress on the heating system providing better durability. Glide Skin waist band to stop the vest riding up. Lithium-ion battery, 3 hours recharge, upto 150 mins use. 3 setting switch.