This Campri Thermal Top is a great base layer for both active and casual wear. Here, lightweight, wicking construction is engineered to trap air close to the body, retaining heat in the process, and has long sleeves with ribbed cuffs, flatlock seams for comfort, and a ribbed crewneck for a close fit Crewneck. Ribbed sleeve cuffs. Wicking thermal fabric construction. Base layer. Ribbed trim. Flatlock seams. 100% Polyester . Machine washable. Keep away from fire. Imported.