Everest is the essential. Dynamic breathability and osmotic exchange, i.e. self-produced oxygenation. Everest a very light windproof sleeveless jacket. The typical qualities of the windproof fabric, chosen by the Rosti design team, make it suitable for adverse conditions. The tests carried out measured the high dynamic breathability that occurs thanks to the osmotic exchange from the inside to the outside of the garment. Composition: front and neck 100% polyamide, back and sides 86% polyester, 14% elastane.