For those that have a USGI poncho and liner in your bag and want to make it into a sleeping bag . Go to Walley World and look in the camping department and get a pack of groments . Next lay out your poncho and attach the liner to it . Fold your poncho in half and snap it together. This will give you a tube , now at one end you install the groments in 2 places. Once that you have this done all you have to do is to tie them together with some 550 cord. This might be a little tight on some people.