Our clear security backpacks are made out of strong .30MM crystal clear PVC with blue PVC piping and strong nylon adjustable shoulder straps. Each backpack has a smaller pocket on the front of the bag to help keep smaller items organized and easy to find. And, best of all, these backpacks are CPSIA compliant. Measures 13.0" Wide x 17.0" High with a 6.0" Gusset. Outside Front Pocket Measures 9.0" Wide x 5.0" High with a 1.5" Gusset.