FALKE(R) Daily Climate Control Crew Neck Undershirt is made of stretchable fabric and offers enhanced mobility. It is the perfect undershirt to stay comfy. Close fit. Outlast(R) reduces overheating and prevents perspiration offering climate control and enhanced comfort. Crew neckline and short sleeve construction. Double fabric detail on the underarm eliminates perspiration marks. Straight hem. Pull-over style. 57% cotton, 38% rayon, 5% elastane. Machine washable. Made in Portugal. If youre not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packaging included.