I really like leather pants
Leather is just skin. Most cattle skin.
I like the texture of alligator leather
Leather
Leather is a durable and flexible material created by tanning animal rawhides and skins. The most common raw material is cattle hide. It can be produced at manufacturing scales ranging from artisan to modern industrial scale.
Leather is used to make a variety of articles, including footwear, automobile seats, clothing, bags, book bindings, fashion accessories, and furniture. It is produced in a wide variety of types and styles and decorated by a wide range of techniques. The earliest record of leather artifacts dates back to
Hide (skin)
A hide or skin is an animal skin treated for human use. 
The word "hide" is related to the German word "Haut" which means skin. The industry defines hides as "skins" of large animals "e.g". cow, buffalo; the skins refer to "skins" of smaller animals: goat, sheep, deer, pig, fish, alligator, snake, etc.
Common commercial hides include leather from cattle and other livestock animals, buckskin, alligator skin