I try to put the hot water to keep the food warm but the water spill out. The top part was okay.
Thicker than i expected (7,3cm~) and the fork/knife department is too small for regular fork and knifes but the quality of the material is good and it is waterproof.
Dont buy it, if you but some juicy food to a department and if you put it in your bag, all the juice will spread to the other parts.