My little one, 25 lb basenji mix, is tiny but mighty! She will suddenly dart away and this was causing shoulder and elbow pain. This leash has been absolutely perfect! Just wonderful! The bungee provides just enough slack so she's not running and jerking backwards. It give her a warning do she does not pull as much. The leash around my waist is MUCH MUCH easier on my body. I've taken to hooking up my 37 lb lab mix to it as well, with her own leash. Walking now, hands free is truly amazing. Another reviewer mentioned something about having a loop at the top of the leash, instead of 2 flat pieces, to make it easier for grabbing in a rush and I agree, but that is such a minor thing compared to the many benefits of this leash. Im going to attach a carabineer with a loop for that purpose. The reflective thread is thicker than most I've had and very reflective. I've had dogs my whole life and simply cannot believe how my quality of life has improved. It's completely changed my experience of being outside with my pups. Very well made, too. Heavy duty. I love it! Try it out. Hopefully you'll be as happy as I am~