The vacuum insulated boxes keep food very hot. They are made with steel and copper. High quality Copper is on the outside and good quality stainless steel on inside. These are then closed with plastic leak proof double shot lids. The latches are stainless steel too.
There is a stylist cover bag provided which can be unfolded to be a water proof table mat. There are 3 containers in the tyffyn, the lowest and the largest being 400 ml in capacity and the other 2 are of 300 ml in capacity. The tyffyn is slim and easily fits into the laptop bag too. So this solves the problem of you carrying those bulky lunchboxes.
The VacuTherm technology, incorporates correct amount of vacuum within its copper lined cover shell that helps in heat retention. Product keeps food hot for upto 6 hours of packing. So you can get hot food during lunch time. The tyffyn is packed in attractive box making it a wonderful gifting option too.