A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQA(R) Mint odor control keeps things fresh. Made in a Fair Trade Certified(TM) factory. Specs & Features Our Most Versatile Baselayer Fabric&';s diamond-grid pattern next to skin provides warmth and breathability, and wicks moisture Zip-Neck Styling Zip-neck styling with internal neck tape for added comfort; locker loop for hang drying Raglan Sleeve Construction Raglan shoulder seams allow freedom of movement, with full underarm gussets for range of motion and chafe-free comfort Easy Layering Smooth, soft face makes for easy layering; HeiQA(R) Mint odor control keeps things fresh Easy Venting Front Zipper Long center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin Low-Profile Thumb Loops Elastic thumb loops for secure hand coverage Supporting the People Who Made This Product Made in a Fair Trade Certified(TM) factory, which means the people who made this product earned a premium for their labor Country of Origin Made in Sri Lanka. Weight 170 g (6 oz) Materials & Care Instructions 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit with HeiQA(R) Mint odor control Made in a Fair Trade Certified(TM) factory Care Instructions Machine Wash Warm, Do Not Bleach, Tumble Dry Low, Cool Iron, Do Not Use Fabric Softeners