Cheeki Insulated Tumblers have been specially created in an effort to keep single-use shake, juice and smoothie containers, lids and straws out of landfill. Made with vacuum insulation to keep drinks cold for up to 6 hours, it is made of premium food-grade 18/8 stainless steel, has a stainless steel straw with a bump in the mid-section to keep it safely in the lid, and comfortably fits car, pram and bike cup-holders. This reusable tumbler is an attractive way to help protect the environment. Handwashing of the tumbler is recommended and the lid is top-rack dishwasher safe. Australian owned. USA FDA Approved, European Union and Fairwork certification, BPA-free, 100% Recyclable Product & Packaging