To use this jacket, simply put it on over your other layers. The low-profile thumb slots make it easy to layer under other clothing. It's great for hunting or other outdoor activities. When it comes to maintenance, you can machine wash it in cold water with like colors. Use a gentle cycle and mild detergent. Avoid using bleach or fabric softeners. Tumble dry on low heat. Make sure to zip up all the pockets before washing to prevent damage. Also, don't iron the jacket directly as it may damage the fleece and the water repellent finish. If there are any stains, spot clean them before washing. Keep it in a dry place when not in use to maintain its quality.