Amazon has Under Armour Adult Hustle 4.0 Backpack on sale for $27.50
Shipping is free w/Prime
84% Polyester, 16% Elastane
14″ shoulder drop
WATER-RESISTANT & DURABLE: UA Storm technology delivers an element-battling, highly water-resistant finish to keep your stuff dry. Tough, abrasion-resistant bottom panel.
COMFORTABLE: Adjustable HeatGear shoulder straps for extra comfort and support.