Thank you for viewing our pet training supplies. This is a special post-operative suit for dogs and cats after neutering. We have color variations for each size, but some sizes and colors are out of stock. Please understand. L size is also suitable for medium-sized dogs, so please contact us as soon as possible if you are interested. We will re-inspect the products and ship them with careful packaging, so please rest assured when you receive them. However, as the products are imported from China, there may be some minor sewing defects. Please refrain from purchasing if you are concerned about this. Many of our customers are repeat customers, so we are confident that you will be satisfied. If you let us know your desired color and size in a message, we will create a dedicated page for you. We strive for prompt shipping to minimize your waiting time. About the sizes: S size: Back length 21cm, Chest 28cm, Neck circumference approx. 18cm Made of rubber material, it has elasticity. S size is perfect for small dogs under 2kg. This special suit can also be worn by cats, but for dogs, we recommend it only for females. For males, due to the structure of the crotch area, they may not be able to urinate while wearing it, so please be careful. This suit protects the wound after surgery, prevents licking and biting, and prevents various problems. It also has a warming effect and promotes wound healing, helping to reduce pet anxiety and depression, and relieve stress. If you are considering purchasing, please let us know your desired color and size. We look forward to hearing from you.