Flora McQueen drawstring backpack is made of 100% skin polyester with cotton black strings. Skin polyester is a new material that is more soft hand feeling and durable compare with old polyester. Original size for this school backpacks is 15"x11"however we are now change it to 18"x13.75"during to customer's feedbacks that the size sometimes too short/small to fit them. It's a 2 sizes printing children backpack ,or backpack for teen girls. The lovely emoji digital printing face makes it popular for girls, teens. It could also use as a preschool backpack. It's a perfect college backpack for girls, or school backpack for girls. This girls backpack is thin light weight. You can even fold and put it into your purse. However the string backpack could storage for ipad,notbook,phone,laptop,books,pens too. The bag could also be a travel backpack, outdoor backpacks, hunting backpack, camping backpack, hiking backpack for girls, for women when go out. It's a nice light traveling backpack for storage simple clothes and other stuffs. It also could be a gym backpack when you go to do exercise. It's a little cute backpack to keep your small clothes. A perfect sport backpack. The backpack bag is great for multiple uses with two soft but strong shoulder straps which makes the straps not cut into your shoulders and you can close the top to keep your belongings safely . It is lightweight and bright ,but still can stand out in a pile of backpacks. It's a best backpack for travel, won't rip or tear easily. Has rope style strings to cinch it closed.