Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip Size:XL stainless steel structure with a

stainless steel structure with a minimal weight thanks to the optimum shape

this go-anywhere

the Ambush 2 channels ample ventilation through modern styling

The BCA Float 32 Avalanche Airbag 2

•Scratch-free

Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip Size:XL stainless steel structure with aOur popular Classic All Season Merino Base Layer 1 4 Zip is the perfect base layer for warm or cold weather. This top uses our All Season weight Merino fabric wrapped around a nylon core to increase durability, while still keeping the 100% soft, Merino wool you love next to skin. Side seams help minimize chafing while wearing a pack and offer a body enhancing fit. This base layer is comfortable, powerful, sustainable, and, frankly, do it all able.