Penny is our Frenchie who is fearless. She loves her rides and we change her glow LED light often. She likes My Human Uber , Penny the Ghost-rider, and Girls Just Wanna Have Fun. The Sport Sack fits her well. She is 22 pounds and solid. We place the pack on the ground so she is comfortably sitting, then zip and go. Her shades are necessary on longer rides.

This is great, Its a bit more fun than a red flashing light that it replaced, It shows up really well when we are Mtbing in the dark forest. Especially when Dexter gets left behind when his little legs can't keep up. ;-)

This is a clever product. It's bright, water resistant, and helps to get attention. That being said, it looks like it's RGB color customizable. It's not. The colors are blocks of each and cannot be changed. Also you cannot change the orientation of the text, or the premade patterns. This makes it not usable for someone on a bike, as the red and blue colors blinking are against the state law.

If I could customize the colors and patterns, I'd have kept it. As it is, I had to return it.