It Can Be A Fitness Backpack Or Schoolbag; Very Suitable For Sports, Fitness, Yoga, Travel, Etc.; Lightweight And Portable, It Can Be Folded At Any Time Without Occupying A Position.A Main PocketIt Is Made Of High-Density All-Polyester Fine-Bead Polyester Fabric, Which Is Light And Strong. The Black Polyester Cloth Fixed On The Back Is Stain-Resistant And Has A Sense Of Fashion Brought By The Contrast. The Woven Drawstring Is Strong And Durable, And It Is Not Easy To Fall Off. Drawstring Design: It Is Very Convenient To Open And Close. You Can Take The Internal Items Well Without Worrying About Losing Items. It Is Very Convenient. You Can Also Adjust The Length Of The Shoulder Strap By Yourself. You Only Need To Tie A Knot Under The Rope. The Biggest Feature Is That It Is Durable And Lightweight, Folds Up To Be Compact And Does Not Occupy Space, And Is Convenient And Practical To Carry Around.This Is Definitely A Good Gift, For Your Favorite Family And Friends, It Must Be Very WonderfulIf You Have Any Questions, Please Contact Us As Soon As Possible, We Are Very Willing To Serve You