This backpack has plenty of room with a big inner pocket, separate section for a 15'' laptop, front pocket, and a hidden pocket at the back for valuables. The bag is made out of a water-resistant material with a soft mesh back and padded ergonomic straps.

Capacity - 4 gallons

Dimensions - H 16⅞" (42cm), W 12¼" (31cm), D 3⅞" (10cm)