"Model TENDENCY External dimensions: 5.7/7.4/2.7\" (14.5/19/7cm) Internal dimensions: 5.5/7/2.5\" (14/18/6.5cm) Shoulder strap length: 47.2- 31.5\" (120 - 80 cm). Also, including one extra strap by 39.3lb. (1m) for transforming from shoulder bag into your backpack and this is very comfortable. Weigh approximately 1lb. (465g) This bag has one section and one small pocket for mobile phone; one button for fixing your keys, so you can never lost them in the most necessary moment. Thing to know: - Pl