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

Stretchable Toray membrane that is both 100 percent waterproof and highly breathable.  

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

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.  

Storm System® is a Loro Piana construction using natural fibers. It consists of a water-repellent Rain System and a breathable hydrophilic membrane that is resistant to water and wind.