BKLYN Bento Neoprene Lunch Bag, Pink/Grey, Unisex, Meal Holder, Easy to Clean, Comfortable Handle and Shoulder Strap, Eco-Friendly

Disappointed. Read great reviews. Don’t know if I got a defective one or a knock-off, but the inside ring is loose. I add boiling water for 10 minutes, add very hot food and two hours later it’s just lukewarm. I work 12-hour days. Lunch is 8 hours in. By then my once hot food is cold. I’d settle for lukewarm food 8 hours in, but cold isn’t good.

I've only used it a couple of times, but it's done a good job of keeping my soup, chili, etc. warm. Actually thinking about buying a spare. The Lunch Bag is cool as well, that was more of an impulse purchase, but it kept my cold drink cold, next to my thermos which was keeping the soup hot...best of both worlds.

So far, so good. it looks classy and thermos keeps food warm for a long time. I timed it with hot water to see how much heat was lost over several hours. It ranks very high according to my testing! (like my Yeti coffee mug). Substantial but not too heavy. My kids wonder if it hold enough food (it is smaller than the ones we have already) but so far no complaints on the quantity.