I purchased this on Amazon. I was unsure about the size, and the description recommended going a size up, so I bought a larger size. However, it was too big, and my dog couldn't move. I was trying to put it on a Toy Poodle that weighs around 4kg. The size chart is as described. It has a "Yuru-Pochi-kun" (a type of adjustable fastener) for fine-tuning. It's in a clean condition, as it was only tried on briefly (because my dog is well-behaved). The color is a vibrant green. Please understand that it was folded when it was originally sent and that it has been handled by a person once. Dog Inu Inu (dog in Japanese) Elizabethan collar