When you're far beyond tree line and still have a ways to go to the summit, you’ll be glad to have the Men’s Preon Fleece Jacket as your midlayer. Breathable Pontetorto fleece wicks sweat away from skin during tough ascents, plus flatlock seams reduce chafing. When dark skies roll in, thumbholes make this zip-up hoodie quick to layer under a shell or insulated jacket.