What's the secret sauce this backpack has? It's made of durable CORDURA® ripstop fabric, which is resistant to abrasions, tears, scuffs, and has a water-repellent finish to help keep your belongings safe and dry. The main compartment is spacious enough for your daily haul, a change of clothes for the gym, or an overnight trip. The back compartment houses a padded sleeve for your laptop or tablet. Two large pockets on the front secure smaller items you want quick and easy access to, and bottle pockets on the sides can hold your favorite beverages. Product Details 20.5"H x 13.25"L x 6.5"D. Strap Length: 38" (longest), 19" (shortest) 100% polyester Spot Clean Imported