For everything from fast-and-light outings to multi-day trips. When worn as a base layer, the breathable Polartec® Power Dry™ fabric wicks away moisture for next-to-skin comfort. In warmer temps, this lightweight, abrasion-resistant top is ideal for wearing on its own and provides UPF 50+ UV protection. The climbing-specific cut provides freedom of movement to reach up high. Rigorously tested by our athletes in extreme conditions, the Eiger Nordwand FL Longsleeve is the ultimate versatile layer.