Double Wall Insulated Thermos 18/8 Stainless Steel Thermos Flask Large Sports Water Bottle 30 Ounce 2 Colors (Black) Made of 100% True Premium Food Grade 18/8 Stainless Steel and Non-toxic Silicon. Completely BPA Free Keep Liquids Ice Cold 24 Hours Hot 12 Hours Leak Proof and Skid Proof Wide Mouth Design For Easy Filling, Pouring, Drinking and Cleaning Large Capacity Allows You to Put More Beverage For Long Journey