Adidas Excel 6 Backpack: was $55 now $42 @ Amazon ... It has a 30 liter capacity, a padded 15-inch laptop sleeve, and a front organization pocket with mesh water bottle holders. View Deal.

Adidas, Lululemon and more, from $20: ... Water bottle holders, wet pockets, ... Doubletake NYC Backpack. 13" x 19.5" x 8" Aluminum, eco-friendly fabrics. 24L.