Great for transporting food or hearty liquids to and from the office, school or anywhere in-between, our double wall vacuum seal technology will keep hot foods steaming hot and cold foods chilled and fresh. The 18/8 food-grade stainless steel interior means non-porous storage with no residual odors or flavors from the previous day’s contents, while our airtight BPA-free, PP#5 lid keeps today's meal as fresh going out as it was going in. The 17 oz Food Flask has ample room for a ready-to-eat meal or for bulk items from the grocery store. Durable and backed by a lifetime warranty, the Food Flask’s 3.25" mouth opening allows for easy access for eating straight out of the container, as well as great pouring ability. The Food Flask by Hydro Flask will keep contents hot or cold up to 3 hours.