Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Men's Men's Clothing Size:XLarge Drop-Stitch Design

Drop-Stitch Design

Lightweight + breathable

Just a quick stop at a stream or lake nets you 1 liter/minute

Check Valve Ball

Weight: 71 g

Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Men's Men's Clothing Size:XLarge Drop-Stitch DesignDescription Features & Specs Size Chart Smartwool has updated the fit of the Men's Classic Thermal Merino Base Layer 1 4 Zip to improve functionality while also enhancing aesthetics. As one of Smartwool's heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature