When the sun's rays intensify off snow-covered peaks or granite walls, the Mountain Hardwear Crater Lake Heavyweight Half Zip Hoody becomes your essential shield against both cold and harmful UV radiation. This women's technical hoody delivers UPF 50+ broad spectrum protection while the soft grid fleece backing provides crucial warmth during dawn patrol missions and chilly alpine ascents. The fitted three-piece hood works seamlessly under climbing helmets, while the half-zip design lets you regulate temperature as conditions change throughout your adventure. Built with plant-derived HeiQ Mint anti-odor technology and featuring low-profile thumbholes for extended coverage, this versatile piece transitions effortlessly from breathable baselayer to standalone top, making it perfect for ice climbing, skiing, mountain running, or any high-altitude pursuit where sun protection and warmth are equally critical.