We optimized the silhouette of the classic baselayer top to make the Backcountry Cedars Rws Merino Lightweight Crew Baselayer Top incredibly comfortable for the active winter adventurer. From in - bounds shredding to skintrack ascents, this top's body - mirroring fit, articulated sleeves, and chafe - free seams keep us cruising toward our 100 - day season goals. We thoughtfully selected a sporty wool blend made with content and Responsible Wool Standard - certified merino wool to be the best stewards we can while delivering top - notch quality and comfort.