Insulated lunchbox by homepuff is very good. The insulation is very good in this. I have tried various other lunch boxes before but this one has the best heat retention of all. I like the looks of this one, as well. I got this one in grey and I really love the colour of this one. Looks unique and also has a sturdy built. Though the price is high the quality of the lunch box is extremely good and it looks like it will last a long time. I like this lunch box a lot.