Designed for year-round adventures in the mountains. Made using Polartec (R) Power Stretch (TM) fleece, this breathable midlayer keeps you warm even at high altitudes. Moisture-wicking properties aid in temperature regulation to minimize rapid overcooling once you reach the summit. Thumb loops provide a secure fit for layering under a jacket. Higher-placed pockets offer easy access to your gear when wearing a harness or backpack. The Taiss ML Jacket is an ideal midlayer whether you're trekking up or coasting down. Mammut Taiss ML Jacket Mens | Blue | Medium | Christy Sports