Smartwool | Classic Thermal Merino Base Layer 1/4 Zip | Men's | Charcoal Heather 10 mm ALL-NATURAL INGREDIENTS restore original performance

ALL-NATURAL INGREDIENTS restore original performance to technical fabrics

Lens: Swank Fototec – Shatterproof polycarbonate lenses that adapt to your environment with an ideal moment-to-moment tint with 100% UVA / UVB protection from harmful UV Rays

hydrophilic rubber ear and nose pads that increase grip the more you sweatFit: Medium-XL |  Weight: 35

Next-to-skin or baselayer for sport

Smartwool | Classic Thermal Merino Base Layer 1/4 Zip | Men's | Charcoal Heather 10 mm ALL-NATURAL INGREDIENTS restore original performanceWe've updated the fit of our Men's Classic Thermal Merino Base Layer 1 4 Zip to improve functionality while also enhancing aesthetics. As one of our 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 regulated as you enjoy high intensity skiing, hiking,