The range of light, with its water-polished granite, twisted yellow-barked pines and beckoning passes inspired this multifunctional zip-neck. Summer, winter or shoulder season, our Capilene Midweight fabric hits the sweet spot of weight, breathability and wicking that, worn alone or with additional layers, is the essence of versatility. It keeps you dry and comfortable when worn during high-exertion activities in cool-to-moderate temperatures and insulates beneath a shell in cold weather. Constructed with a Polartecr Power GridT fabric, it has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as warmth. The fabric is bluesignr approved, has 93% recycled-polyester content and is treated with Polygiener permanent odor control. Features include a long center-front zipper for venting, internal neck tape for next-to-skin comfort, full underarm gussets for unhindered shoulder mobility, elastic thumb loops for secure hand coverage, flatlock seams to minimize chafing, offset shoulder and side seams to lie smoothly beneath pack straps, and a drop tail for additional coverage. Polartecr Power GridT fabric has a smooth face for easy layering; fabric's brushed grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance Self-fabric backing on collar with internal neck tape for comfort; locker loop for hang-drying Long center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin Offset shoulder seams eliminate chafing under pack straps Full underarm gusset for range of motion and chafe-free comfort Elastic thumb loops for secure hand coverage Flatlock seams to minimize chafing; drop tail for more coverage 4.4-oz (150-g) Polartecr Power GridT 100% polyester (93% recycled) double knit with Polygiener permanent odor control. Fabric is bluesignr approved 167 g (5.9 oz) Made in El Salvador.