How to use: Put on the long sleeve top before your low-intensity workout to get your muscles warmed up faster and perform better. Make sure to measure your body parts as described to choose the right size. Attention: Since SKINS sizing is different from normal sportswear, don't just rely on your usual size. Double - check using the provided measurement guide. Maintenance: You can machine - wash this top in cold water. Avoid using bleach or fabric softeners to keep the fabric's elasticity and the white logos looking good. Hang it to dry instead of using a dryer to prevent damage.