Smartwool Classic Thermal Merino Base Layer Colorblock 1 4 Zip Merino Smartwool Womens Classic Thermal Merino Base Layer 1 4 Zip GoBros.com Smartwool Classic Thermal Merino Base Layer 1 4 Zip Plus Women's Smartwool Classic Thermal Merino 1 4 Zip Boxed Base Layer Top Women's Smartwool Classic Thermal Merino Base Layer 1 4 Zip Plus Top Women's Smartwool Classic Thermal Merino BL 1 4 Zip Boxed Merino base layer. We've updated the fit of the Women'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 one of our 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 keep you comfortable and temperature regulated as you enjoy high intensity skiing, hiking, running, and more. DETAILS Slim Fit 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Fit updated to improve functionality while enhancing aesthetics for a range of body shapes Back body seam wraps to front for body enhancing fit Crew neck with raglan sleeves Flatlock seam construction designed to minimize chafing 8" (20 cm) center front zip with semi locking slider Knit in China: 100% Merino Wool Garment Weight: 236 g = 8. 32 oz Style: SW016373 CARE Machine Wash Warm Gentle Cycle. Do Not Iron Decorations. Do Not Bleach Tumble Dry Low Cool Iron As Needed Do Not Dry Clean Wash With Like Colors