High reflective iron on decals specifically for performance wear. Apply with a hot iron for 15 seconds to any fabric. Wash durable and permanent, yet lightweight and stylish. EASY TO APPLY WITH IRON - 1. Turn your iron to the hottest it goes (linen) 2. Lay garment on hard flat surface 3. Press iron with medium pressure for 15 seconds TIP FOR HEAT SENSITIVE FABRICS - Always test if your fabric will be damaged by an iron by putting the iron on the inside or a not so visible part of the garment. If it does mark, make sure you raise up the transfer area when applying so only the transfer shape gets direct heat and pressure. You can do this by cutting a piece of cardboard or chipboard to size and placing it under the garment exactly under the transfer. See our website for a training video (just search google for Iron On Experts).