To use these boyshorts, simply put them on like regular underwear. When it comes to care, you can machine - wash them in cold water with similar colors. Avoid using bleach as it may damage the fabric. Hang them to dry to maintain their shape. These boyshorts are designed for daily wear, so feel free to wear them for any activity, whether it's working out or just relaxing at home. Remember to check the size chart before purchasing to ensure the perfect fit.