Description Oasis Food Flasks harness double wall vacuum insulation technology to significantly reduce heat transfer by conduction or convection. This technology prevents condensation from building on the exterior when storing cold ingredients, and likewise, remains cool to touch when storing hot ingredients.By using vacuum insulation technology, food can remain hot for up to 7 hours or cold for up to 9 hours. External factors cannot permeate the bottle's exterior - perfect for Australia's diverse climate. Made from quality 18/8 grade stainless steel inside and out, Oasis Food Flasks are highly-resistant to rust, are odourless and built to last a lifetime. Designed with a wide mouth for easy access, each flask features a tight-fitting stainless steel lid with a silicone seal designed to ensure no leaks. Convenient and portable; perfect for your fast-paced lifestyle all year round, these stylish reusable Oasis Stainless Steel Vacuum Insulated Food Flasks offer an environmentally conscious alternative to plastic containers. Details 450ml capacity. Vacuum Insulated. Stays hot for up to 7 hours | Stays cold for up to 9 hours. 18/8 Stainless steel. Features a stainless steel lid with no-leak seal, and wide mouth design. BPA-free. PBS-free. Phthalate-free.