The internal structure: computer bags， mobile phone bags， document bags， zipper<br>Size:40L(30cm*52*18cm)<br> 50L(30cm*55cm*20cm）<br> 60L(38cm*60cm*22cm <br>Open cover: zipper<br>Gender: Unisex<br>Material: Nylon<br><br>Function: wear resistant， waterproof， anti-theft， breathable<br>Adopted high quality net nylon and zinc alloy zipper， wearable and durable.<br>With resin net 3D breathable material， dissipate heat fastly， comfortable to carry.<br>Suspension detachable design， relieve your shoulder pressure.<br>Large capacity， widely used in outdoor camping， hiking， travelling， etc.<br>Fashionable design is popular among the sports lovers.<br>Waterproof material， with rainproof cover， anti-tear and anti-dust.<br><br>Color: Orange，blue，green，black，purple，dark blue
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