Mangrove Anti-Theft 30L Laptop Check-in Friendly Backpack Anti-theft Design! Anti-theft Design! Anti-theft Design! Solid quality: Anti-scratch fabric, delicate sewing + high-class parts: YKK zippers etc Light Weight + Check-in Friendly Multipurpose: as school bag, casual daypack, travel bag, hiking bag, business bag, camera bag, gun bag, yoga etc No smell, no leaking, no sharp point cutting hand, no loosened part to be accidently eaten by children