I love my 'wanna help buy a goat' Kiva bag... and would think a smaller one with velcro fastening for lunches would be terrific.
I have used my one bag continuously for almost a year now...
It washes well and the logo hasn't faded - it could have started out darker though

It actually contains all my other (shh not enviro friendly) rip stop polyester bags that I have used for close on 20 years - we had a lady in town back then called herself The Bag Lady and she made them by hand in red, blue, white and green. I think the Chico bags would probably be great because the polyester is very long lasting - as long as the construction is good.
jan
ps - Our grocery stores give only 3c per bag - and we have to actually remember to tell them up front that we want it to go to charity because 'someone was offended by being asked' and now the cashiers are required to assume a credit to the bill unless we speak up. sad.