MB Element Silver - Insulated lunch box - To keep food hot and cold up to 10h
A Lunch Box That Keeps Food Warm – Biome New Zealand
Solar-powered lunchbox keeps your food hot or even cool, depending on what's inside - Yanko Design
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
1pc 600 Ml Insulated Plastic Lunch Box Keep Your Food Fresh And Hot All Day Long - Sports & Outdoors - Temu United Kingdom