Perk up with the perfect mix pre- or post-run with the Stanley Vitalize™ Shaker Bottle (20 oz). Powered by double-wall vacuum insulation, this 20-ounce bottle keeps your drinks ice-cold for hours while a tethered leakproof cap protects the Fast Flow drink spout from messy spills and everyday grime. As an added bonus, a removable Tritan base container can store up to 3 oz of drink powder or snacks to keep you stimulated while you work up a sweat.