Our concept is "enjoy with colourful stuff" and we love colour,sewing,enjoy life,funny things. Detail for this product: You can use it in 3 style 1.Take for short strap and use like a shoulder bag. 2.Take for midium strap and use like a shoulder bag. 3.Take for long strap and use like a backpack. Materiel : Pu waterproof fabric : Pu leather : Ykk zip Size : wight 34 cm., : high 22 cm.