These bags only hold items obtained in the leatherworking profession, but are larger than the average world drop or craftable bag. Only 1 leatherworking bag may fill a slot in a bank at any time.
“Leatherworking bags are a specific type of bag that can hold leather, skinning knives, and other...Leatherworking bag
“Trapper's Traveling PackItem Level 80Binds when equipped28 Slot Leatherworking BagSell Price: 4...Trapper's Traveling Pack
“Leatherworker's SatchelItem Level 65Binds when equipped20 Slot Leatherworking BagSell Price: 3...Leatherworker's Satchel
“Binds when equipped24 Slot Leatherworking BagSell Price: 4 Crafted by Leatherworkers with a...Bag of Many Hides