Made Of High-density Polyester-coated Fine Polyester Fabric For Light Weight And Firmness. The Black Polyester Cloth Fixed On The Back Is Also Resistant To Dirt, And The Woven Belt Is Sturdy And Durable, And It Is Not Easy To Fall Off. Drawstring Design: It Is Very Convenient To Open And Close. It Can Take Good Internal Items Without Worrying About Losing Items. It Is Very Convenient, And You Can Adjust The Length Of The Shoulder Strap By Yourself. Just Tie A Knot Under The Rope. The Biggest Feature Is That It Is Durable And Light, It Is Small And Folds, It Doesn't Occupy The Position. It Is Convenient And Practical To Carry. It Can Also Print The Exclusive Logo Design On The Group Activities. It Is A Good Gift To Give Friends And Relatives.