Oscaurt via Amazon offers the Oscaurt Travel Anti-theft Laptop Backpack in Grey for $36.99. Coupon code "Q5BJ9EPG" cuts it to $29.59. With free shipping, that's the lowest price we could find by $13. It features anti-theft design, USB charge port, water repellent fabric, reflective tape, several pockets, and adjustable shoulder straps. Deal ends February 28.

Note: It's available in other colors for $33.59 via the same coupon as above