Patagonia Tool Sack Backpack Tote Bag A simple drum-shaped gear bag that first appeared in 2002. This item was designed with inspiration from traditional Japanese tool bags made of thick canvas. Durable nylon fabric is used to withstand the weight of the gear. Although it has been discontinued for nearly 20 years, it's a popular design that can be carried like a tote bag or worn as a backpack. Since it's an old item, Please ask any questions in the comments section if you have any concerns. We appreciate your understanding before purchasing.