Camping Cookware Hydro Flask Insulated Food Jar 235ml Black. Product Type : Flasks. tradeinn trekkinn. The HYDRO FLASK Insulated Food Jar is a compact and stylish solution for keeping your food hot or cold while on the go. With a 235ml capacity, this black food jar is perfect for camping, hiking, or any other outdoor adventure. The insulated design ensures that your food stays at the desired temperature for hours, while the durable stainless steel construction is built to last. The twist-off lid doubles as a serving bowl, making it easy to enjoy your meal wherever you are. This food jar is a must-have addition to your camping cookware collection, offering convenience and reliability in one sleek package.