Amaze Amp Womens 4/3 Back Zip 2025 Wetsuit

Performance & Feel

The Amaze Amp sits at the top of ION's women's Amaze range, the most technical and stretchiest of the line, and the 4/3 is the version for cooler water sessions. The Amp gives flex and warmth, with the extra millimetres adding insulation for autumn and early spring sessions. The recycled Max_Flex outer lining across the shoulders, arms and neck adds around 30% more stretch where it matters most, and sheds water rather than soaking it up, so the suit dries fast between sessions. Hot_Stuff 2.0 lines the entire torso and legs for warmth, Plasma_Plush 2.0 across the back blocks the wind chill, and Silk_Stuff keeps the shoulders and arms smooth next to the skin.

The back zip makes a 4/3 easy to climb into and a Water_Gate panel behind the zip acts as a flushguard to keep cold water from getting through the zip and running in down your back. The seams are glued and blind-stitched then fully taped across the inside to seal out flush and hold heat, the sleeve and leg ends are fused for a durable finish, and drain holes clear water on the way out. Built-in shin guards protect your lower legs against knocks.

Key Features

• Recycled Max_Flex outer lining: around 30% more stretch at the shoulders, arms and neck, made from recycled fabric and sheds water for fast drying
• Hot_Stuff 2.0 thermal lining: lines the torso and legs for warmth with full stretch, ION's stretchiest thermal lining
• Plasma_Plush 2.0 back panel: plushy, fast-drying lining that blocks wind chill
• Silk_Stuff lining: smooth next to the skin at the shoulders and arms
• Limestone I_Foam neoprene: light and stretchy for warmth at low weight
• Fully taped seams: taped across the entire inside to cut flush, hold heat and add durability
• Water_Gate: a sealing panel behind the back zip that works as a flushguard to cut cold-water flush
• Built-in shin guards: protect the shins
• Fused sleeve and leg ends: a smoother, more durable finish