For everything from quick, light outings to multi-day trips. When used as a base layer, the breathable Polartec Power Dry fabric wicks away moisture for next-to-skin comfort. In warmer temperatures, this lightweight and abrasion-resistant t-shirt is ideal for wearing alone and provides UPF 50+ UV protection. Offset shoulder seams prevent contact with pressure points when carrying a backpack. Rigorously tested by our athletes in extreme conditions, the Eiger Nordwand FL t-shirt is the ultimate versatile layer.