Nylon outer with attached carry strap and hook-n-loop closure. Unfolds to 19" long with multiple inside zippered compartments, hook-n-loop divided pockets, clear see-through zippered compartment, removable zippered pouch with inside elastic hold-downs and added zipper pocket.There's even a mounted 2" x 2" mirror. Folds flat for easy packing. makes a great travel bag or first aid kit. Measures folded 6½" x 8". Weighs .53 lbs.