To use this hoodie, simply put it on and enjoy its comfort. The front pockets are great for holding your phone, keys, or other small items. When it comes to sizing, remember to order 1 - 2 sizes bigger than your normal size because of the international sizing standard. For maintenance, you can machine wash it in cold water on a gentle cycle with mild detergent. Then, just hang it up to dry. Keep in mind that the color might look a bit different on your monitor, and there could be a small measurement error due to hand - measuring.