K2 · Kuhane Two Hood

K2 · Kuhane Two Hood — Yamamoto #40 | 3/2 mm

Less thickness. More warmth. Kuhane's flagship cold-water wetsuit. 3/2 mm of Yamamoto #40 with Kuhane's exclusive Metallic interior: the warmth of a 5 mm without the weight or stiffness of thicker neoprene. For water at 8–12 °C.

A new way to see wetsuits

Kuhane K2 was built around what surfers actually need: less thickness, more warmth and less fatigue. The result is a lighter suit for longer sessions, faster paddling and better performance in the water.

Yamamoto #40 — Japanese limestone, not oil

Produced by Yamamoto in Osaka, Japan, from limestone instead of petroleum. Its 93% nitrogen-filled closed cells make it 99.7% waterproof: it holds heat and doesn't absorb water.

Metallic interior + Greenwave™ jersey

The Metallic interior is a thermal lining exclusive to Kuhane that returns heat to the body and glides on and off. The exterior uses Yamamoto Greenwave™ #2080, a plant-based nylon with 500% stretch.

Arms Up + Moon Zip

Arms Up cut: sleeves set in a raised position for a pull-free paddle. Moon Zip entry: curved YKK chest zip. GBS seams (glued and blind-stitched) with exterior liquid seal.

Integrated hood

Integrated hood with adjustable drawstring to reduce cold-water entry. Built for winter on Chile's central and southern coast.

Proven performance

• +1.2 °C average back temperature (32.7 vs 31.5 °C).
• 41% of the back above 33 °C, versus 2% with standard neoprene.
• 14× lower friction dry and 125× lower in water.

Based on imagery from the material supplier.

Technical Specifications

• Neoprene: Yamamoto #40 · limestone-based
• Thickness: 3/2 mm (≈ 5 mm thermal feel)
• Temperature: 8–12 °C
• Outer jersey: Yamamoto Greenwave™ #2080 · plant-based nylon · 500% stretch
• Interior: Metallic · exclusive Kuhane thermal lining
• Seams: GBS (glued and blind-stitched) + liquid seal
• Entry: Moon Zip · curved chest zip · YKK
• Cut: Arms Up · raised sleeve position
• Hood: Integrated
• Warranty: 2 years
• Origin: Japanese materials