mwave offers the Datashell Robust Armor 15.6″ Laptop Backpack in Cosmo Black, model no. CBP-AT15-BK, for $49.99 with free shipping. That’s the lowest total price we could find by $17. It fits laptops up to 15.6″ and features water repellent fabric, padded shoulder strap with cellphone pocket, and more.

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