Smartwool Classic All-Season Merino Base Layer 1/4' zip Men's Size:L Our largest volume packs provide

Our largest volume packs provide a stable close-to-body carry

-Plush Materials: Soft

Repair Pipe

With an improved design providing you with more usable space these bags just got better

Smartwool Classic All-Season Merino Base Layer 1/4' zip Men's Size:L Our largest volume packs provideOur 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.