When you’re on the go grab this backpack. There are 3 three ways to load the Impulse backpack. 1. From the top, with a zippered main compartment that includes two internal zip pockets and two accessory pockets. 2. From side panel you can slip slimmer items and zip them up. 3. A secret side compartment giving even more tuck away space. Measures 19” H x 11” L x 6.5” W.