All-around performance in a mid-weight base layer that provides fast wicking and durability in a range of temperatures. The Patagonia Capilene(R) Midweight Zip-Neck Top features a slim fit and smooth face for bulk-free, easy layering in cool climates. Using Polygiene(R) as an odor neutralizer, this zip-neck top stay fresh and can be worn several times without laundering. Features: Polartec(R) Power Grid(TM) 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 Weight: 213 g (7.5 oz) Slim Fit Materials: 4.4-oz (150-g) Polartec(R) Power Grid(TM) 100% polyester (93% recycled) double knit with Polygiene(R) permanent odor control.