Thin enough to forget, warm enough to matter. The Lightweight Baselayer Crew Top sits close to the skin with moisture-wicking, anti-odor 4-way stretch fabric. Tag-free label for seamless layering. 40% Polyester, 34% Acrylic, 22% Rayon, 4% Spandex Fitted 28.5" Body Length (Size M) Moisture Wicking & Anti-Odor 4-Way Stretch Tag-Free Label Imported (Item# M9002)