Brilliant. I’ve been looking for months for something to use to enable me to take the dog with me on long bike rides. Had tried a bike mounted carrier but found cycling position uncomfortable plus felt the dog was feeling every bump. The dog loved it too, surprised how quickly she settled. Used a tube of dog liver paste to keep her in position long enough to put neck harness on and zip up and tighten straps, definitely a two person job initially. I felt she was much safer and more comfortable in the backpack than she was in the other carrier I’d tried. She’s only 6.5kg but really didn’t notice her on my back.