Top handle strap, adjustable with padded shoulder strap to keep shoulder strap close to shoulder for back comfort The backpack has reinforced the anti-wrinkle details on the bottom, ensuring that the bottom of the backpack is firm, and reinforced to protect the backpack Both sides of the bag are provided with side bags, which can be used to put water cups, umbrellas and other objects to increase portability It is recommended to wash by hand or wipe with a damp cloth, do not soak for a long time, and do not bleach