45l travel backpack amazon Basics Backpack,Carry-On with Laptop Compartment, 1.55 cu. ft. Capacity,Expandable for 10% Extra Space,Convertible & Shoulder Bag,Multiple Pockets,13.8"W x 21.5"H x 9.5"D, Black Item_Bags Timbuk2 Custom Prospect Laptop Colour:Dark Moss

45l travel backpack amazon Basics Backpack,Carry-On with Laptop Compartment, 1.55 cu. ft. Capacity,Expandable for 10% Extra Space,Convertible & Shoulder Bag,Multiple Pockets,13.8"W x 21.5"H x 9.5"D, Black Item_Bags Timbuk2 Custom Prospect Laptop Colour:Dark Moss

Timbuk2 Custom Prospect Laptop Backpack | Lifetime Warranty

You can also purchase one separately—REI Co-op's Duck's Back Raincover gets the job done—but keep in mind that they aren’t foolproof and can be hard to trust in windy conditions

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Colour:Dark Moss

The Securtex® anti-theft vacation backpack features slash resistant panels, a double-cable cut-resistant strap, locking zippers, and RFID-protection