Amazon has Under Armour Hustle 5.0 Backpack (Various Colors) on sale below from $22. Shipping is free with Prime or on orders over $25.

• Jet Gray/Cerise $22
• Black/Seaglass Blue $27.50
• Royal Blue/Silver $27.50
• Mechanic Blue/Metallic Silver $27.50
• Black $27.50
• White/Black $27.50