Change is a good thing - as is the case with the 24 oz. color changing sports bottles! With a push-pull lid and vibrant color options these eco-friendly water bottles are inexpensive giveaways for sporting events, recreational activities and fundraisers. Simply add ice cold liquid and watch the color change. Reusable and recyclable, these beverage holders are union made and printed in the U.S.A., BPA free, machine washable and not microwavable.