Amaze Core Womens 4/3 Back Zip 2026 Wetsuit

Performance & Feel

The Amaze Core sits in the middle of ION's women's range, above the Element and below the Amp, and the 4/3 back zip is the version for cooler water. For 2026 the big change is the move to neoprene-free natural rubber, which makes for a notably soft, supple suit. Hot_Stuff 3.0, ION's stretchiest and plushiest thermal lining, warms the body without stiffening the suit, and Silk_Stuff 2.0 keeps the chest, shoulders and arms stretchy and smooth to the skin.

The back zip makes it easy to climb into, and an internal neoprene panel seals off the zip to cut the cold water getting through the zip and rushing in down your back. Inside seams are glued and blind-stitched, flexibly taped at the knee and crotch areas with Maki_Tape 2.0 and the stress points reinforced. Water Defender Legs, a patent-pending feature, stop the leg cuffs folding up under water flush with inserts that drain water fast, and built-in shin pads protect your shins.

Key Features

• Hot_Stuff 3.0 thermal lining: warms the body with full stretch, ION's stretchiest, plushiest thermal lining
• Silk_Stuff 2.0 lining: thin, smooth recycled lining at the chest, shoulders and arms for stretch and comfort
• Neoprene-free natural rubber: FSC-certified rubber from oyster shell powder, plant-based oil and eco-carbon black, soft and supple
• Water Defender Legs: patent-pending leg inserts that stop the cuffs folding up and drain water fast
• Glued and blind-stitched seams: flexibly taped at the knee and crotch with Maki_Tape 2.0 and reinforced stress points
• Back-zip flushguard: an internal neoprene panel sealing the zip to cut cold-water flush
• Built-in shin pads: protect the shins