Our Onsen 4/3 is the one-suit quiver killer. The geometric cell structure of Yamamoto #40 in our Onsen wetsuits are 98% water impermeable and locks in body heat, which allows this 4/3 exceptionally comfort and warmth into water temps that could warrant a 5/4.

Onsen wetsuits are constructed with 100% Yamamoto #40 neoprene. Every detail has been tested in the harshest of conditions and designed utilizing comprehensive research and development that implements environmentally sustainable materials.

Water Temp: 50°F to 57°F | 10°C to 14°C

Model Size: Model is 6’0” tall, 185lbs and is wearing a size Large