Leather skins feature a unique skin design consisting of the weapon being partially wrapped in brown leather with stitching and rivets around the edges. The only member of the Leather skins family at the moment is P90 | Leather which was added to the game during Operation Breakout in July 2014. The skin is a part of The Baggage Collection and is available in all five exteriors, however, it can't have the StatTrak technology attached to it.
Check out other CS:GO skins families: