How to use: Simply put on the jersey before your bike ride. It's designed to fit well and won't restrict your movement. Just zip it up and you're ready to go. Notice: Avoid wearing sharp objects near the jersey as it might damage the fabric. When cycling in very hot or cold weather, you can layer other clothes under or over the jersey as needed. Maintenance advice: Wash the jersey in cold water on a gentle cycle. Don't use bleach as it can damage the fabric and the 37.5 technology. Hang it to dry to keep its shape. After drying, you can fold it neatly and store it in your cycling gear closet.