? Type: PROBOTT Stainless Steel Double wall Vacuum flask/Thermoses & Flasks/Bottle is made of high quality stainless steel. It has a double wall high quality steel body superior ?thermal retention to keep beverages hot or cold ?Insulated: Double-wall vacuum insulation technology, retains the temperature, flavor, freshness and nutritional value of the drink inside ?Durable: Unbreakable, stainless-steel exterior and 18/8 304 interior, quality materials: 100 percent rust-free, food-grade, hygienic, 100 percent BPA-free, non-toxic, non-leaching ?Design: This shaker bottle specially designed for hot & cold liquids and protein shakes. ?Care Instructions: Care & Use Guide Available Inside the Box Experience the quality and performance that sets our products apart. Elevate your game with our high-quality products designed for athletes and enthusiasts.