Patagonia Midweight Capilene - Base Layer - M

From the website: 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. HeiQ® Pure odor control keeps things fresh. Made in a Fair Trade Certified™ factory. Our Most Versatile Baselayer Smooth, soft face makes for easy layering; HeiQ® Pure odor control keeps things fresh Self-Fabric Crewneck Classic crew 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 Internal Diamond Grid Pattern Diamond-grid pattern next to skin provides warmth and breathability, and wicks moisture Low-Profile Thumb Loops Elastic thumb loops for secure hand coverage Stretchy Comfort Stretch for added comfort and improved fit during movement Supporting the People Who Made This Product Made in a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor