How to use: Simply zip up the full - length locking front zipper to wear the jacket. You can keep it handy in your cycling bag and take it out when the weather changes. When riding in cold or wet conditions, it will keep you warm and dry. When it gets warmer, you can easily stow it away. Note: Avoid sharp objects that could tear the jacket. Do not over - stretch the fabric. Maintenance: You can machine wash the jacket on a gentle cycle with mild detergent. Hang it to dry. This will help keep the DWR finish effective and maintain the jacket's overall performance.