The Kilimatex CLEO men's baselyer T-shirt is made from 100% functional polypropylene Prolen Siltex fibre, which contains an additive on the basis of biogenic silver ions. Silver ions prevents the growth of bacteria and mold, reduce unpleasant odors and maintain the biological balance of the skin. This material ensures excellent skin ventilation and temperature control. Polypropylene fiber is lightweight with excellent thermo-insulation capability. It wicks sweat away from the skin and leaves the skin dry and odorless with ultimate colour stability. This quick-drying material is harmless (tested in an accredited laboratory). T-shirt is sewn with flat seams to eliminate skin irritation. It has extended back part and body fit.