The Alpha Jacket is purposefully designed for fast, technical ascents where every gram counts, but having a reliable alpine shield is non-negotiable. Pairing GORE-TEX PRO ePE with 50D Hadron™ face fabric strikes the right balance between waterproof-breathable protection and abrasion resistance, making it ideal for daily use in rugged terrain and shifting conditions. With a harness-compatible build and precise articulation, this jacket is made to climb through any storm. Need a heavier option? Try the Alpha SV Jacket .