This backpack is designed for practicality and organization and made of a durable, textured fabric, possibly nylon & polyester.
The bag has several notable features:
Main Compartment: The upper section has a large, central zippered compartment with a double zipper pull. The front of this section also has a smaller, horizontal zippered pocket.
Bottom Compartment: 
There is a separate, dedicated zippered compartment at the very bottom, also with a double zipper pull. This design is often seen in bags for carrying shoes, lunch, or wet gear, keeping it separate from the main contents.
Side Pockets: Both sides of the bag have mesh pockets, likely for water bottles or other items that need to be easily accessible.
Design Details:
It has reflective piping or strips that run along the front seams, which would make the bag more visible in low light. The zippers and zipper pulls are a silver or gold tone, contrasting with the black fabric. It also has a top handle for carrying.
Overall, the  bag suitable for a variety of uses, such as for the football, gym, school, or a day trip.