Select from the following.
[-] Some larger hamsters may need a vest and gloves in order to get to the cage safely. Store-mounted harnesses may offer extra protection from fleas, ticks, and other dangers, and can also repel small rodents..
[-] A good rule of thumb is that A small size harness will suffice in the heat of the day. A large-sized harness will work better..
[-] Try one of these : A lightweight neck neck harness is a great choice. This will allow you to support your hamster as you walk..
[-] You'll likely need the smallest harness you can find, as animals the size of hamsters are not commonly walked. Go with a harness that fits snugly, without impeding the hamster's breathing or movement..Choose from options above and answer: What most naturally follows?

How to walk your hamster
Choose a safe, snug harness.
There are plenty of small animal harnesses available at your local pet store or online. It may be worth visiting the store first to familiarize yourself with the different options and sizes that are available.
Answer:
You'll likely need the smallest harness you can find, as animals the size of hamsters are not commonly walked. Go with a harness that fits snugly, without impeding the hamster's breathing or movement.