Using this Big Agnes Buell sleeping bag is a breeze. First, take it out of the stuff sack and shake it well to fluff up the fill. Unzip it fully and lay it out on your sleeping surface. Slide in and adjust the contoured hood around your head. Use the one - hand cordlock to tighten it for extra warmth. You can open the two - way zipper if you get too hot. If you want to attach a liner, use the liner loops. For storage, hang it up using the exterior loops to dry it thoroughly after use. Then, stuff it into the nylon stuff sack for easy packing. When not in use for a long time, store it in the mesh storage sack to keep it fresh. Always refer to the photos for the temperature ratings and make sure to use it within the appropriate temperature range.