Save the power work for the gym. The BlenderBottle Strada protein shaker opens effortlessly with the push of a button. Close the lid for a quick, leak-proof seal. Improved Mixing - Rounded Bottom. Forget to add the liquid first? The rounded base allows the BlenderBall whisk to blend every last bit of powder. Carrying Loop - Clip It, Loop It, Hang It. A flexible, ergonomic carrying loop provides a comfortable grip for easy mobility. Or use the loop to secure keys or attach the Strada Tritan to a gym bag. The Strada Thermo Stainless Steel keeps drinks ice cold for up to 24 hours without condensation on the bottle.