TaoTronics Retractable Dog Leash with Dual Bungees for Double Protection, Hands Free Dog Leash for Running, Walking, Hiking & Biking, Dual Handles for Better Controlling, for up to 150 lbs Large Dogs UPC 635414207532
It's about 28". When you do this it leaves a big loop. I am short so I was worried about it getting caught in the loop when I ran so I've been clipping it under the first knot just above the handle to make the loop smaller and the leash is about 36" then which seems to be a good length for running with my dog.
This is an awesome leash with many possibilities. You can remove the waist strap and attach a second leash to it and easily walk 2 dogs. I just got this leash and didn't realize how versatile is would be. Favorite leash ever!
It's pretty long, but it has those metal rings on it and you can easily clip it into the waist-belt to make it shorter. I clip/unclip parts of it as we're on our walk depending on how much slack my doggo needs.