Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip

Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip

The Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip is one of Smartwool's heaviest base layer tops, updated with a slim fit and shoulder panels. A 10 inch quarter zip lets you dump heat on hard efforts without stopping to pull off a layer.

Why We Carry It

It's the base layer we recommend for cold, high output days on the skin track or trail, when you need warmth and a quick way to vent.

Highlights

• 100% merino wool: Interlock knit that regulates temperature, moves sweat and resists odor.
• 250 g/m2 weight: Smartwool's Classic Thermal fabric, one of their warmest.
• 10 inch quarter zip: Open it on the climb, close it for the descent.
• Slim fit: Follows your body so it doesn't bunch under a midlayer or shell.
• Flatlock, offset seams: Offset shoulder and side seams help increase comfort and minimize chafing.

Best For

Skiing, ski touring, cold weather hiking and running. Made for skin laps up Monarch Pass.

Specs

• Material: 100% merino wool, responsibly sourced, interlock knit
• Weight: 250 g/m2 (Classic Thermal, midweight)
• Zipper length: 10 in (25 cm), size M
• Fit: Slim
• Seams: Flatlock with offset shoulder and side seams
• Care: Machine wash warm, gentle cycle, with like colors. Tumble dry low. Do not bleach or dry clean.
• Made in: Vietnam