Arc'teryx Proton Heavyweight Hoody Women's in the colour Black. 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.