I love this bottle-it’s large enough to add extra water to thin out the too thick consistency of vegan protein shakes with enough room to be able to mix. Love the actual mixer- it’s easy to clean! Seems to be leakproof so far. The colors could be better though- I really wanted the white but it was sold out. I have three so I can make three shakes at once for the week and keep the others at the ready in my refrigerator. I have concrete, just ordered black, and bought the “raw” color. I was thinking the raw would be wrapped like the others but it is not- so it tends to sweat. Not a fan of that one. I’m probably going to send that one back and hope for white to return to stock. I like how easy these are to clean and they fit perfectly in the cup holders in every vehicle I drive, including the school bus I drive every day. Please consider making more wrap colors- like maybe cream or light pink. Thank you for a great product!