Proton Heavyweight Hoody is made for professional mountain sport athletes and guides who need reliable warmth, breathability and durability in demanding conditions.

The jacket is insulated with 100 g/m² Coreloft™ in the body and 60 g/m² in the sleeves, providing effective temperature regulation without clumping, even during high activity. The Fortius™ Air 50 outer fabric is air-permeable and ensures good moisture transport and comfort. The helmet-compatible StormHood™ offers extra protection against weather and wind.

Articulated joints and a roomy fit ensure good freedom of movement and room for layering. The jacket features several practical pockets, an adjustable hem and is constructed without PFAS.