To use these Ella seamless mini shorts, simply put them on like you would any other pair of shorts. They're great for workouts, casual outings, or just lounging around. When it comes to maintenance, it's best to machine wash them in cold water with like colors. Avoid using bleach as it can damage the fabric. Tumble dry on low to keep them in good shape. As for sizing, remember that they run true to size, so pick your regular size for a perfect fit.