Swiss- XL US- L Developed for optimal temperature control, the light and compressible Aenergy Hybrid insulated vest is designed for ski touring in cold conditions. The front and shoulders are filled with the innovative 52% recycled Octa material, striking the right balance between warmth and breathability. The material provides excellent insulation even when wet while also allowing excess heat to dissipate for optimum temperature regulation. This makes it suitable for a large temperature range, without having to take layers on or off. It combines a lightweight wind-resistant fabric with equally wind-resistant, light panels made of stretchy storm fleece with waffle structure for better freedom of movement and breathability. The elastic mesh chest pocket provides easy access to your various items, and an insulated hood provides extra warmth. The Aenergy Hybrid insulated vest keeps your core warm when participating in strenuous activities in cold environments.