So we used this to transport food from our events. These were exactly what I wanted. The handles were surprising sturdy for the amount of food we piled in the bags. I did however reinforced the bottom due to the large amount of food as a precaution. The food stayed cool for over two hours with our ice packs so very well insulated. I would recommend putting in some cardboard if you need the sides to stand tall (example for cakes). Would recommend.I’ve been using these bags daily for my DoorDash orders over the past few weeks. At first, I was skeptical of the size but soon realized these bags can hold way more than expected. I was able to fit 3 large pizzas from Pizza Hut in one and the order was still hot after a 20 minute drive. A pizza delivery bag on the doordash website is around $25 but with these bags you get 2 and save $10!!My biggest issue with these bags, however, is that the short handles prevent you from being able to swing it on the shoulders. This can be an issue for anyone who struggles with carrying heavy orders. Also, the zipper only works best when the bag is placed on a flat surface and then opened. However, for the price, it’s a great bag!I bought these to use with instacart I have had them a little over a month they work great. I can fit in 2 shopping bags in each. They hold heat and or cold beautifully. When I have something hot you can feel the heat when you open it back up. They seem to be made well but are light weight so they don’t stand up on their own if you were to place them in the back of your car. Maybe they will once they are used more but on the plus side they can be carried to the door (even full) with ease.the zippers are a bit lightweight, but with careful handling, I've loaded these bags up across several trips to grocery/costco stores with decent success. I use them as hot, cold or just as ambient bags. I wouldn't get any size smaller than XL, unless you are buying very very little (e.g. 80 yrs od and living on your own).I use it to transport ice cream from college to home. Fits 10 1/2 gallons with dry ice for a 5 hour trip. Traffic can make the trip 6 hours. All 10 1/2 gallons were a solid brick with dry ice still in container. For my use wish it was 1 inch taller to make the closing a little easier. Durability so far has been good. No signs of stress.Awesome product. I'm a personal chef, and I carry a cooler all the time to customers' houses, and this past weekend I used the insulated shopping bag, and it was so easy to carry meats, seafood, and other products, that I was amazed.Thank YouThese bags are turning out to be a great buy! After last weeks CA heatwave of temps over 110 degrees, they proved that they could withstand it! I put all of my cold items in the bags and put the bags in the trunk and drove almost an hour before unloading them. The items were still cold as I opened the bags and put things away in the fridge.They are lightweight and fold up for storage. The inside insulation works great. I would recommend these bags.Use this to hold items taken from my freezer while sorting through things. When I was finished, instead of putting melting items back, they were ice cold. Got a blast of iced air when I opened the bag. Don't know how durable it is as I didn't move it much while in use.Two of them fit perfectly on the the seat of my rollator. I am not sure about how sturdy they are and how long they will last but they are very convenient and can contain a lot.