The item ID for Leather in Skyrim on Steam (PC / Mac) is:
To spawn this item in-game, open the console and type the following command:
player.AddItem 000DB5D2 1
To place this item in-front of your character, use the following console command:
Leather is one of the many essential materials required for a variety of crafting recipes in Skyrim. Leather is created when animal hide and other forms of pelt is tanned.