Cheeki 500ml Insulated Tumbler - Rainbow Pearl is perfect for smoothies, iced tea, iced coffee, juice and water on the go and will keep your liquid icy cold for up to 6 hours. Double-wall and vacuum insulated, with a stainless-steel reusable straw, you will never have to use plastic again. Combine with our food container for the ultimate reusable kit. Cheeki reusable tumblers are BPA-free, eco-friendly and environmentally safe. Cheeki reusable tumblers are BPA-free, eco-friendly and environmentally safe. Portable cold insulated tumblers are perfect for travel and commute. 500ml double-wall insulated spill-safe smoothie tumbler. Vacuum insulation keeps beverage cold for up to 6 hours. The Cheeki range includes water bottles, coffee cups and mugs, lunchboxes, food jars, reusable straws and tumblers. Committed to protecting our natural environment by providing stainless steel alternatives to single use plastic.