Its single coat is short, glossy and fine, lying close to the body. The Korat is all smooth, curved lines and is medium sized. The back is carried in a curve. The male, usually larger than the female, must look powerful and fit. The color is silver-blue all over, with no shading or tabby markings.
Eye color is preferably luminous green, although an amber cast is acceptable.
The eye color is not usually true until the cat is mature at two to four years of age. The LaPerm, a naturally occurring mutation, comes in both longhair and shorthair varieties. This is a medium sized, very curly coated cat. The gene causing the coat to curl is a dominant gene. LaPerms are generally quiet voiced, but may be vocal when wanting attention.