Solar-powered lunchbox keeps your food hot or even cool, depending on what's inside - Yanko Design
OmieBox: Keep Your Food Hot AND Cold
monbento - Insulated Lunch Box MB Element Silver - Leakproof and Insulated Container Keeps Food Hot/Cold for Up to 10 Hours - for Work/School Lunch Packing - BPA Free - Food Grade
Fridge Pak Insulated Reflective Lunch Bag with Pocket and Top Carry Handle - Keep Foods Hot or Cold up to 6 Hours (Blue) : Amazon.co.uk: Home & Kitchen
62/32 Litre Large Hot Food Delivery Insulated Bag - Ideal for Pizza De – TovaHaus
MB Element Silver - Insulated lunch box - To keep food hot and cold up to 10h