How to use this pullover is easy. Just zip it up and wear it as a regular top. You can adjust the mid - chest zipper to turn it into a turtle neck when it's cold. The thumb holes in the sleeves are great for keeping your hands warm. When it comes to care, remember not to use bleach, iron it, or take it to dry clean. Instead, turn it inside out and wash it in low temperature water. Then, tumble dry it on low heat. This way, your pullover will stay in good condition for a long time.