Nite ize dawg nylon dog collar - Nite Ize Nite Dawg Nylon Dog Collar w/ LED Flash or Glow Illumination

I am very pleased with this collar. I generally walk my dog after the sun starts setting because it is so hot in Alabama during the summer and this collar makes me feel a little bit safer when walking along the road. My only request from the manufacturer would be to have more specific sizing. I got a medium for my fairly slender yellow lab and it just barely fits. I would like it to be slightly larger so that it would be less covered by her fur. I would get a large but the review I read said that I would have to cut off so much of the fiberoptics to make it fit that there wouldn't be much illumination left. It works very well, but maybe they need to have an in-between size.