I shopped with my Border Aussie during Black Friday, and this leash worked so well for this activity, mainly in 2 ways:
1. It serves hands-free, allowing human to tie the leash around the waist and free one hand from holding the leash
2. If the leash is too long and the dog does not stay at your side, then you can adjust the other front of the leash to shorten the length.
I love this leash a lot, especially the beautiful bright color of orange and blue. In general, this is a great leash for any activities where you need both hands and want the dog to walk next to you.