Men's Klimatex T-shirt for your sports activities Men's Klimatex CLEO T-shirt is made of functional material from 100% polypropylene fiber Prolen Siltex. This fiber is light, has excellent thermo-insulating properties, wicks away sweat and leaves the skin dry and odor-free, and is colorfast. It ensures maximum moisture removal and quick drying. Flat seams eliminate skin irritation. It has an elongated back and a body cut. the adjustment is permanent, it does not wash out, the antibacterial fiber Prolen Siltex destroys bacteria and eliminates odors, flat seam technology, PROLEN SILTEX® use: underwear for year-round use, in winter it helps to insulate, in summer it ventilates the skin and prevents the trick from body adhesive Material: 100% polypropylene (Prolen® Siltex)