How to use: Just put on this base layer like you would any other shirt. It's designed to be worn close to your skin under your regular cycling jersey. Notice that it fits snugly but not too tight, so you can move freely during your ride. Attention: Avoid wearing sharp objects that might tear the delicate fabric. When washing, turn it inside out to protect the carbon - infused mesh. Maintenance: Wash it in cold water with a mild detergent. Don't use fabric softeners as they may reduce the fabric's breathability. Hang it to dry instead of using a dryer to prevent shrinkage. With proper care, this base layer will serve you well for a long time.