Most mid-layers fail somewhere between the skin track and the summit. Too warm on the climb. Not warm enough once you stop. The Alpha Hybrid Hoodie is built for exactly that window - Polartec® Alpha™ Direct in the body keeps warmth regulated as the pace changes, Stretch Cordura® sleeves handle the reach and the abrasion, and stretch fleece underarms give you full movement without restriction. A tall collar that actually closes out the cold. A hood that adjusts properly. The mid-layer for the days when nothing can go wrong. Regular fit. Works as a standalone or under any shell.