First of all, I really like it.
My dog doesn't really like Harnnes because he got scratched on his armpit once, but it doesn't feel much resistance when he do Harnnes, so I guess it was comfortable.-Leash are long, so it's good to wear glow-in-the-dark balls at night.
I think there are about 5 Harnnes that I've used, but I like this product the most.
I totally recommend it.