To use these Fizik summer cycling socks, simply put them on like regular socks before your bike ride. They're designed to fit well and provide support during cycling. When it comes to care, you can machine - wash them in cold water to keep them in good condition. Avoid using bleach as it might damage the anti - bacterial treatment. After washing, let them air - dry. Don't tumble - dry as high heat could shrink or damage the fabric. These socks are made for cycling, so it's best to use them during bike rides for the best performance. And remember, if you notice any signs of wear and tear, it might be time to replace them.