Put on the Smartwool Classic Thermal Merino Base Layer Crew Top and enter a world of comfortable natural fiber. A slim, efficient fit keeps warmth next to the body while the odor-resistant construction also breathes for better thermoregulation. Flatlock seam construction minimizes chafing so you can be confident using this base layer through your high-exertion athletic pursuits. 100% Merino Wool – Made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance. Flaw: 2 minor holes on back of shirt near collar- see photo