My wife bought me your product for my Birthday of course she said it was a present from our dog Ripley. Ripley and I have been running together since he was 1 with a standard leash. Just before he turned 2, we took the Cardio Canine go for a test run and never looked back! The hands free running is GREAT and there is nothing better than knowing that no matter how obedient Ripley is, I will NEVER have to second guess his occasional need to TRY and chase after a rabbit or squirrel no the other side of the road with on coming traffic! Ripley is now 3 and he and I are in great shape! The cardio canine doesn. t chafe or interfere with my running in any way and it holds baggies for the road! I fully endorse this product and so does my running partner.