The Smartwool® Intraknit All-season Merino Base Layer Bottom is intended to help give you room to move without additional bulk. Fabric helps combine the moisture management, temperature regulation, and odor resistance of Merino with TENCEL™ Lyocell® fiber to help keep you cool. Featuring Intraknit™ technology: Insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort. Minimal seams designed to help reduce chafing and allow you to work out distraction-free. This bottom features elasticized waistband, pull-on style and brand logo on the left thigh.