Shake things up with Ice Shaker's® 26oz. Shaker! Invested in by Mark Cuban on ABC's Shark Tank and created and used by the Gronkowski Brothers and athletes everywhere, the 26oz. Shaker is a high-quality, double wall insulated protein shaker bottle that will keep your drink cold for 30+ hours! The 26oz. Shaker features a patented, noise-free twist on agitator that is designed to blend protein powders and work as a strainer to ensure a perfect drink every time. Constructed from premium, kitchen-grade stainless steel, the 26oz. Stainless Steel Bottle will not absorb odors and is double wall vacuum insulated to keep your drinks cold for hours and prevent condensation from building up on the outside of the bottle. For easy measuring, the 26oz. Shaker is equipped with internal measurement lines that lets you add the perfect amount of liquid to mix up any tasty concoction! The silicone base prevents it from sliding, chipping, and makes the cup less noisy when setting it down. For added convenience, it fits in all standard size cup holders so that you can take your 26oz. Shaker anywhere you go! Stop dealing with smelly plastic bottles that don't keep your drinks cold and shake things up with Ice Shaker's 26oz. Shaker! Now you can turn your 26oz. Shaker for protein shakes into a cup for fruit infused water with Ice Shaker's new Fruit Infuser (sold separately). Simply twist off the agitator and twist in the fruit infuser for fruit-infused water!  OTHER DRINKS 26OZ. SHAKER CAN BE USED FOR: pre-workout juices, protein powder shakes, BCAAs, coffee, smoothies, cocktails, iced tea, and water! PRODUCT FEATURES: Keeps drinks cold for 30+ hours (3rd party tested) 5oz, 10oz, 15oz, and 20oz. measurement markings inside bottle Kitchen-grade stainless steel will not absorb odors Patented noise-free twist on agitator Convenient carry handle on lid Fits in all standard size cup holders BPA Free, spill proof pop-top lid Easy to clean Sweat proof Silicone base