O'Neill Hyperfire 3/2 Chest Zip Steamer Wetsuit Mens

O'Neill's cold-water flagship, rebadged from the HyperFreak Fire and rebuilt around the brand's most advanced neoprene. If you want winter warmth without giving up paddle-freedom, this is the steamer that does both. ($599.99)

Key Features

• TB4X graphene-lined arms and entry for featherlight paddle power and near-zero resistance
• TB4 Firewall core lining that traps heat and, per O'Neill, is touch-dry within about 30 minutes — no wrestling into a cold, soggy suit next session
• FUZE chest-zip entry with an anti-flush barrier and drain holes to shut out cold-water flushes
• Fully taped seams with internal Fluid Weld Seal to lock warmth in, session after session
• Minimal-seam design for flex and comfort across the whole suit
• Double Seal Collar to stop water sneaking in at the neck
• Built in the O'Neill Blue program from recycled and limestone-based materials

Details

• Thickness: 3/2mm (3mm core / 2mm arms & legs)
• Neoprene: TB4X stretch arms & entry; TB4 Firewall core lining
• Seams: fully taped with internal Fluid Weld Seal
• Entry: FUZE chest zip
• Collar: Double Seal Collar
• Eco: recycled oyster shells, car tyres and plastics; limestone-based neoprene; solvent-free lamination; dope-dyed yarns
• Colours: Black, Cadet/Black, Steel Grey

Who It's For

• Surfers logging long sessions through the cooler months who won't compromise on flex
• Anyone chasing warmth and fast dry-time in a high-performance steamer
• Paddlers who want a suit they forget they're wearing
• Cold-water regulars ready to step up from an entry-level 3/2

Sizing

Sizes run S, M, MS, MT, L, LS, LT, XL, XLS, XXL. O'Neill uses a two-part code: the base letter is your chest/girth (S/M/L/XL), and the suffix tunes for height — S = shorter, T = taller for the same chest (e.g. MS is a shorter Medium, MT a taller Medium). A 3/2 means 3mm through the core for warmth and 2mm in the arms and legs for movement — a genuine all-rounder that suits roughly 14–19°C water as a rough guide, so it's a solid pick for a temperate Aussie winter. This is a chest-zip suit: step in through the neck and seal the flap across the chest. A wetsuit should fit snug like a second skin — no loose panels, no gaps at the lower back, wrists or ankles where water can flush through. It'll feel firm on land; that's right. Sizing follows O'Neill's official men's chart — match your height, weight and chest to your size code and you're sorted.

Stuck between two sizes? Go down a size. Still not sure? Get in touch and we'll help you nail the fit.