When we over-heat, we perspire, regardless of what we are wearing. At some point, extreme heat, humidity, or heavy perspiration can overload the vapour transmission capacity of any clothing, even a cotton T-shirt. When the system is overloaded, moisture accumulates inside and discomfort often results. Osmotech technology is a fabric mix that includes very breathable outwear plus high waterproof features. This system is less likely to overload and cause discomfort than less breathable, waterproof products.
Shell 2: 100% Polyester. Inside: PU laminated.
Lining 1&2: 100% Polyester