Made Of Polyester Material, With Good Breathability And Strong Wear Resistance High Quality Reinforced Metal Zipper, Safe Zipper Closure And Metal Buckle Ensure Smooth Opening. Soft Foam Shoulder Pad Can Reduce Pressure And Make Your Arm More Relaxed. Adjustable Reinforced Shoulder Strap And Top Handle Are Very Portable Size: 16.9 X 11 X 6.3 Inches. 1 Main Pocket, 1 Front Pocket, 2 Side Pockets. 1 Internal Compartment Pocket. Enough Space To Store And Organize Your Folding Umbrella, Water Bottle, Laptop, And Ensure The Maximum Safety Of Your Items The Super Large Capacity Is Suitable For Daily Life And Travel Use, Suitable For Students To Attend Classes, Work, Vacation, Outdoor Activities, And Daily Use. It Is Also A Practical Gift For Teenagers And Friends Washing Instructions: Hand Wash Or Machine Wash, Do Not Bleach