Built for exploring new places that inspire you, the Calverton 26-Liter Backpack is made from 100% recycled polyester and has a main compartment with a zipper opening, an external zip padded laptop compartment, and a front zipper pocket for quick access to smaller items. Two mesh water bottle pockets on each side help free up space inside your backpack and avoid accidental spills, so you can discover what inspires you. Regenerative materials have been sourced from farms and forests which are managed using regenerative agricultural practices. This method encompasses a variety of practices which aim to help promote biodiversity, enhance water cycles, improve soil health, and sequester carbon. Some commonly implemented practices include reducing chemical inputs, integrating cover crops, and reducing soil disturbance. For more information related to specific materials, please visit https://www.timberland.com/en-us/responsibility