Don’t let cooler temps and bulky layers interfere with your training goals this season. CEP’s Cold Weather Long Sleeve Base Shirt for Women fits comfortably under any CEP shirt while keeping you warm thanks to a premium blend of heat-retaining materials. Vents through the front and sides of the shirt keep air moving to help skin fresh as you push through your workout. Experience ultimate comfort without anything riding up thanks to extremely stretchy material that ensures a stay-put fit. Be sure to check out the rest of the Cold Weather Collection for all of the best gear to keep you warm on your next run. Smart Clima technology uses high-quality materials designed to be worn in both hot and cold conditions Ventilation holes in the front combined with lightweight materials throughout the shirt provide optimal breathability Seamless design delivers a comfortable, stay-put fit Long and short sleeve options give you the flexibility to adapt to your workout Material: 73% Polyamide, 24% Polyester, 3% Spandex