the kit offered by Kat Skins. Int. Innovation makes a great kit. The fittment is tight and them are holding up well after years of use. The seat in my sig are the Kat Skins seats. They have been in there for six years and still look new. The red suede has faded very little. The price of this kit is high. For the money you cant go wrong with Inter. Innovation. Just my two cents.