When the mountain throws everything it has at you, the Buff Thermonet Hinged Balaclava transforms to meet every challenge. This convertible face mask delivers superior cold weather protection with THERMONET® technical fabric that blocks wind 2.5 times more effectively than standard materials while retaining twice the heat. The ingenious hinged design lets you quickly adapt your coverage – pull it down for breathability during intense climbs, flip it up for full face protection when the storm hits, or configure it as a neck warmer when conditions ease. Primaloft® insulation keeps you warm without the bulk that restricts movement, while the helmet-compatible fit ensures seamless integration with your skiing, snowboarding, or mountaineering gear. Whether you're charging down alpine slopes or grinding out winter miles on your bike, this performance balaclava moves with you thanks to 4-way stretch fabric that won't bind or chafe during high-intensity activities.