The Bungee Nylon Backpack - Chenille Lettering  - Smell Proof  - Double Zipper Approx measurements: 18" x 15" x 7" NOTE: We’re now using new technology to bind the smell proof material to the bag to make it more smell proof. We also have new double zippers with each zipper having reverse direction with a stopper at the end for better trapping of the smell.