Hydro Flask Sugar Rush All Around Stainless Steel Travel Tumbler with Straw 40oz Has small dent and ding. See photos. This Hydro Flask Sugar Rush All Around Travel Tumbler is the perfect companion for your on-the-go adventures. Made of durable stainless steel and featuring a convenient straw, this 40oz tumbler is designed for easy sipping of your favorite beverages. The multicolor design adds a touch of style to your routine, while the vacuum insulation technology keeps your drinks hot or cold for hours. Whether you're commuting to work, hiking in the mountains, or just running errands around town, this travel tumbler is the ideal way to stay hydrated and comfortable all day long.