>>157314599% of my deliveries fit inside a 12x12x12 Winco food bag that I use with the front rack but I still wear a backpack, Banjo Brothers Commuter in large to hold a bigger food bag (16x13x9), tools, and very rarely for deliveries since I try to avoid the grocery or beer haul jobs. (the rookies can handle those jobs) I just find the Winco and front rack combo to be very stable, the last thing you want is a saucy food order tumbling around in your food bag. I used to roll a food backpack but the size of them is overkill for most app courier work and tumbles happen most with the extra space as well as food cooling down faster. Unless you've opted into catering deliveries (fuck that), you don't need a huge bag.
Chrome bags used to be really nice but they're not what they used to be unless you shell out for the high end Chrome stuff and even then, you can find a better deal with smaller names (like Banjo Brothers). I hate to say it but Chrome has become a fashion brand for courier wannabes.
