Check out Andy Artoonian's website. The advantages of Horse over Cow hide are few. Why? Because the best cuts of horse leather are fewer and more expensive than the best cuts of cowhide. Most maker who advertise horsehide do not use the best cuts, and therefore the holster is so rigid that you could have bought Kydex and saved some bucks. Likewise, the best cuts of Cowhide, properly molded and treated by the best makers (Andy Artooninian) will retain their shape and secure the gun just as firmly as horsehide, and be more comfortable, at less cost. Horsehide does tend to be a bit thinner, but in a quality cowhide holster I doubt you will be able to tell much of a difference.