The only layer you need when the temperature drops. New brushed fabrication combines enhanced thermal and moisture management with a superior slip-on feel for added comfort. Embroidered logo on front. Constructed of 100% waffle weave microfiber, Under Armour®'s ColdGear® crew neck is designed to channel heat throughout your body, keeping you toasty during rigorous, cold-weather activity. Long-sleeve design. 100% waffle weave microfiber Designed for cold temperatures Wicks moisture away from your skin to keep you dry Thin, thermal construction provides warmth Long-sleeve design Thermal, double-sided fabric adjusts to your body temperature ColdGear® fabric channels heat throughout your body to create radiant warmth Sizes are chest sizes, in inches. Under Armour has already compensated in the design of its apparel to be consistent with normal (XSB-XLB) sizing. Please order the size you would wear in a non-performance shirt or pant. XSB = 25-26" (64-66cm) SB = 26-28" (66-71cm) MB = 28-30" (71-76cm) LB = 30-32" (76-81cm) XLB = 32-34" (81-86cm)