Equations are just problems waiting be solved! Be motivated to tackle them with this Celeste Saves the City inpsired backpack! It has a spacious inside compartment (with a pocket for your laptop), and a hidden back pocket for safekeeping your most valuable items.

• Made from 100% polyester
• Fabric weight: 9.56 oz/yd² (325 g/m²), weight may vary by 5%
• Dimensions: 16.1″ (41 cm) in height, 12.2″ (31 cm) in width, and 5.5″ (14 cm) in diameter
• Capacity: 5.3 gallons (20 l)
• Max weight: 44 lbs (20 kg)
• Water-resistant material
• Large inside pocket with a separate pocket for a 15” laptop, a hidden pocket with zipper on the back of the bag
• Top zipper has 2 sliders, and there are zipper pullers attached to each