Great for toting your martial arts gear, sports drinks and more. The Adidas Sports Backpack offers ample storage options and a durable water-resistant HYDROSHIELD base. It has a roomy main compartment that includes a padded pocket for your laptop. Expandable mesh pocket, a side zippered pocket, and UltraRide padded shoulder straps and rear panel, making it comfortable to carry. Available in 2 sizes Medium/Large. Medium: 19.7"x12.2"x7.87" Large: 22.4"x12.9"x9.05"