Designed for performance, the F-Bomb Fusion 4/3 Chest Zip With Hood Fullsuit Wetsuit features 80% neoprene and 20% polyamide construction with Fusion Dry Seam Technology. Its 4×3 mm thickness, E7 flash lining, internal key pocket, and critical stress point taping ensure warmth, flexibility, and durability — all with a solvent-free, waterbased lamination.