Take these Adult Silicone Straw Cups made out of 100% food grade silicone along with you and babe to the park. Put our cups in the dishwasher at home or conveniently wipe them off on the go. Our adult cup holds 28 ounces and has all the same features of our kid's cup. Now you can officially match your little one! Of course, you can always feel safe knowing that they are FDA approved, BPA, PVC, and BPS free.