Our most versatile baselayer with the greatest comfort range is made with Polartec® Power Grid™ fabric with Polygiene® permanent odor control and Fair Trade Certified™ sewing.The Sierra’s superb Evolution traverse combines a chilled, pre-dawn start, high-altitude temperatures and sometimes-frigid shade with a non-stop, all-day pace. Designed to manage the extremes of high-output exertion, our Capilene® Midweight fabric hits the sweet spot of weight, breathability and wicking. Worn alone or under layers, it keeps you dry and comfortable during high-exertion activities in cool-to-cold weather. Constructed with Polartec® Power Grid™ fabric, it has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as warmth. Solid-colored fabrics have 66% recycled-polyester content, heathers have 33% and both are treated with Polygiene® permanent odor control. Features include a brushed elastic waistband for next-to-skin softness, gusseted crotch for mobility and flatlock seams that minimize chafing. Features
5.2-oz (175-g) Polartec® Power Grid™ 97% polyester (solids: 66% recycled; heathers: 33% recycled)/3% spandex with Polygiene® permanent odor control.
Fair Trade Certified™ sewing.
Fabric is certified as bluesign® approved