XL

Warmth starts at the core and getting the layering right is critical to a comfortableday outdoors and in the mountains. Our evolved layering system caters to differenttemperatures and different intensity...

Heavyweight, fleece backed, body hugging legging with natural wicking properties. CONTENT: 85% Nylon, 15% Elastane https://www.nils.us/fitting-room

The UltraGear Bottom is designed to provide dynamic movement and base protection on your best adventures. Flat seam construction creates a sleek, comfortable fit, while an elastic waist keeps your...

Base Fabric: 88% Polyester, 12%Elastane 2-way Stretch Jersey KnitSecondary Fabric: 100% Polyester100wt FleeceFit: Regular Size Guide

Whether worn as a winter base layer, or a cool-weather pant, the UltraGear Bottom has the versatility to handle any adventure. We created it with elastane and double-knit fleece keeps...

Move freely and stay warm. This stretch crew delivers breathable comfort, moisture control, and a streamlined fit for active days in the cold. Designed for high-output cold-weather performance, the Men's...

The Youth Active Stretch Bottom provides a warm, flexible thermal base layer designed for active kids. Its stretchy fabric moves with your child, offering comfort and insulation during outdoor adventures...

Keep your young adventurer warm and comfortable with the Youth Active Stretch Crew. Designed as a thermal base layer, it offers excellent insulation while allowing full freedom of movement. Its...