Dimensions: 20"L x 14"W x 15"H. It's pretty simple, your pillow goes into the bottom zippered compartment. The rest of your bedding or sleeping bag goes into the top large zippered compartment. This bag fits into most fire station overhead lockers.It also works great for your family trips, kids sleepovers, or camping trips. Some of our customers use it for their boat life vests and cushions. All packed 20/case.