Men's Helium 2.0 Jacket

This KJUS-patented forearm venting system speeds the body's natural cooling process. Vents located in the lower arm allow for fine-tune air circulation to microregulate your temperature.

Breathability comes as standard in all KJUS products, even in waterproof pieces. The number indicates the amount of perspiration that can escape from the fabric over a specific period of time. The higher the number, the more breathable

A non-porous, stretchable and soft membrane with high moisture permeability, waterproofness and extremely high breathability.   

Specialized materials engineered with highly conductive graphene absorb body heat and evenly transports it throughout the fabric, reducing cold spots and regulating heat.   

From reliable suppliers, who ensure the proper treatment of the animals in their care, and reject the use of live-plucked down. Downs of highest quality
with a fill power of up to 850 cuin. 

Create the optimal environment as your body heat fluctuates. High-performance fabrics are combined with thermodynamic materials that trap body heat during peak performance and are released after you cool down, helping to regulate your body temperature.    

Engineered with sealed seams and water-resistant zippers. The higher the number rating, the more waterproof the fabric.  

This phase- change material actively equalizes extreme temperatures and provides balanced inner climate at multiple temperatures. Wax within the fabric trap excess heat. When the temperature drops, the stored heat is released back to body.