I have only tried this once and my dog won't use it - will fit a puppy to small / medium size dog. 

  • Adjustable strap: with the simple buckle, the shoulder strap can be adjusted easily to the right length according to your height. The total length of the whole strap is 35.43 inch / 90 cm, and the adjustable length range is 17.72 inch / 45cm.
  • Can be cleaned quickly and easily in your washing machine .
  • The bag is only 11.9 ounces / 338g
  • There is a front pocket to take some little things such as treats, poo bags, your wallet, cell phone or keys.

Specifications:

Shoulder Strap Length: 17.72 - 35.43inch / 45 - 90cm

Front Zipped Pocket ：7.1 inch * 7.1 inch / 18cm *18cm

Item weight: 11.9 ounces / 338g