At those prices, OP can "doubled" them up - it's rated for up to 55 lbs. - that's plenty of room to pack, depending on what you plan to transport in them. Cheaper than getting a roll of duck or package tape to reinforce them.

Reminds me of those laminated stripe of blue, red & white plastic/canvas tote/shopping once popular with Chinese travelers all over - of course, most of them are now toting designers rollers & spinners down the jetbridge.