Durable: include a strap. Made of high quality 600d strong nylon and waterproof material, very durable and wear resisting.
Multifunction: the bag has a top handle, as an hand bag; and also has a shoulder bag strap, as a single shoulder bag; most people use it as a waist bag, perfect for carrying your water bottle, cell phone, keys, mp3 and so on.
Practical design: the bag has multiple pockets, it is convenient for you to put your stuff when cycling, running, hiking, climbing or anyother outdoor sports