On the front you find an extra pocket. The lining is waterproof. The zippers are from YKK and the shoulder handles are adjustable. On the inside you'll find an elastic bottle holder and a pocket all over the back that closes with Hoop-and-loop fastener. On the name tag you can write down your name and contact details.

This is a small backpack. It will not fit a standard sized folder. 

Dimension:
size - 20 x 13 x 26 cm

Materials:

outside - Recycled Plastic Fabric.
inside - waterproof nylon
zipper - YKK zipper
handles - cotton webbing