Mountain Hardwear Men's Kor Airshell Warm Vest

It's everyone's dream—go from freezing temps to working up a sweat, no change in layers required. The Kor AirShell Warm Vest doesn't require shedding or adding layers thanks to a powerful combo: temperature-regulating AirMesh on the inside to keep you warm when it's cold and cool when it's warm, and breathable, stretchy Pertex Quantum Air on the outside to release clammy sweat. All while fending off pesky branches—no problem—as you pick up speed on cross-country trails.

• Lightweight, durable, breathable Pertex Quantum Air ripstop fabric stretches to move with you
• AirMesh lining adds warmth without sacrificing breathability and adds anti-odor protection
• Anti-chafe zipper garage below chin
• Two secure zippered chest pockets
• Two secure zippered hand pockets