32 Oz Wide Mouth 2.0 Water Bottle with Flex Cap Alpine - New Horizons Trading Co.
Do Bottle Cleaning Tablets Actually Work? (Cleaning Coffee and Tea Stains in a Hydro Flask) - YouTube
Amazon.com: Tumbler Water Bottle Cleaning Tablets - (30 Tablets) All Natural Ingredient, Great for All Stainless, Plastics, Ceramic and Glass Drinking Containers, Individually Packed (1) : Sports & Outdoors
Hydro Flask Bottle Brush & Straw Cleaning Set $8.98 + Free S&H w/ Prime or $25+