evo.com | Smartwool Balaclavas > An absolute necessity for those super cold days on the mountain or when you just need to go incognito, the Smartwool NTS Mid 250 Balaclava breathes and sweats with you. Interlock knit 100% Merino wool construction brings the wicking performance you demand no matter how hard you push it. 100% Merino Wool One Size Fits Most Single Layer Interlock Knit Construction NTS Mid 250 Fabric | 100% Merino Wool Heavier baselayer fabric for more insulation in cool to cold weather. Comfortable Face Protection with Good Peripheral Vision | Smartwool 250 Balaclava 2026 in Gray