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Product Description
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GUL Viper 3/2mm BS Yamamoto Steamer

Crafted from the demands and direct feedback of GUL’s elite team riders, the Viper 3/2mm Yamamoto Steamer is built to be your ultimate line of defence against the cold — delivering uncompromising warmth without sacrificing freedom of movement.

Designed for high-performance surfing, the Viper combines premium Japanese materials with advanced thermal technologies to create a lightweight, flexible suit that performs in demanding conditions.

Key Benefits

Weightless: Engineered for effortless performance.
Unrestrictive: Maximum flexibility for dynamic movement.
Natural movement: Designed to follow your body’s natural flow.

Construction

Blindstitched seams: Superior durability with reduced water ingress.
Yamamoto® neoprene: Premium Japanese neoprene for exceptional insulation and flexibility.
Pinstripe external upper: Sleek, high-stretch outer panels.
Lava Fluid Stretch lower: Enhanced lower body flexibility.
PowerTex4 knee pads: Durable abrasion-resistant reinforcement.
Graphene X BoltDry+ lining: Advanced heat retention and moisture management.
ThermoSpan lining: Core warmth where it matters most.
Micro2Flex internal lining: Soft, flexible interior comfort.
Lava Flow full internal taping: Watertight seam integrity.
True Thickness foam: Consistent insulation without compromise.

Features

ABS chest zip entry: Reduced flushing and improved flexibility.
PK #8 low-profile stainless steel zipper: Durable, corrosion-resistant closure.
Pro GlideSkin collar: Smooth seal to minimise water entry.
RevoFit 3D pattern technology: Anatomical, second-skin fit.
S-Seal cuff & ankle seals: Locks in warmth and reduces flushing.
Embossed knee bend: Enhanced comfort through natural movement zones.
Wind mesh kidney panel: Protection against wind chill.
Twin-Cinch flush barrier: Additional internal water protection.
Integrated key loop: Secure storage for essentials.

Designed for serious cold-water performance, the Viper 3/2mm delivers elite-level warmth, flexibility and durability in a lightweight package.

Size Guide

UK Size	Chest (cm)	Height (cm)	Hips (cm)	Waist (cm)
S	86–91	162–167	81–86	69–74
MS	91–97	167–172	86–91	74–79
MST	91–97	177–182	86–91	74–79
M	97–102	172–177	91–97	79–84
MT	97–102	177–182	91–97	79–84
ML	102–107	177–182	97–102	84–89
LS	107–112	172–177	102–107	89–94
L	107–112	177–182	102–112	89–94
LT	107–112	182–188	102–107	80–94
XL	112–117	180–185	107–112	94–99
XLT	112–117	185–190	107–112	94–99
XXL	117–122	183–188	112–117	99–102
XXLT	117–122	190–195	112–117	99–102

Tip: For optimal thermal performance, your wetsuit should fit snugly without restricting movement. If you are between sizes, consider your height and chest measurements carefully.