Smartwool Intraknit All-Season Merino Base Layer Crew - Men's Winter Moss Medium. This crew top features our Intraknit technology-where insulation articulation and ventilation are seamlessly integrated to help enhance movement and comfort. The fabric helps combine the moisture management temperature regulation and odor resistance of Merino with TENCEL Lyocell fiber to help keep you cool. And with minimal seams to help reduce chafing this top will allow you to focus on taking your workout to the next level. So go out there and feel good doing it Specifications for Smartwool Intraknit All-Season Merino Base Layer Crew - Men's: Manufacturer: Smartwool Age Group: Adults Apparel Fit: Slim Gender: Male Application: Outdoor Fabric/Material: TENCEL Lyocell Elastane Merino Wool Polyester Nylon Features of Smartwool Intraknit All-Season Merino Base Layer Crew - Men's Fabric blends the moisture management temperature regulation and odor resistance of Merino with TENCEL Lyocell fiber to help keep you cool Package Contents: Smartwool Intraknit All-Season Merino Base Layer Crew - Men's Smartwool SW002868K18100M000: Intraknit All-Season Merino Base Layer Crew - Men's Winter Moss Medium