You will get this eventually if you start the game looking for -
1 Wolf Pelt
(Drops from Wolves, Bears, and Locked Chests)
2 Sinew
(Drops from Wolves, Bears, Hares, Locked Chests, Skeletons, Corpses)
The Hard part is you can kill 10 wolves and if the dice rolled bad you can end up with 0 sinew and 10 wolf pelts, or reversed 10 sinew and no wolf pelts.
Take your supplies to a Crafting table to get 2 EXTRA INVENTORY SLOTSSSSSSSSS
By far the best item in a game thats halfway about Inventory Management.
GL!