Smartwool Men's Classic All-Season Merino Base Layer 1/4 Zip

Ascent Outdoors$105Buy

The creators who use it, or GearCred, may earn a commission when you buy through these links, at no extra cost to you.

From Ascent Outdoors

Our 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.