Personalize your 5oz, 11oz or 9oz insulated bottles by adding a matching contrasting color bumper. The bumpers are easy to remove and install so you can change the look of your bottle as often as you desire! Make it Yours with our bottle bumpers that fit all of our 5oz, 11oz and 9oz insulated bottles! Our bumpers provide protection for the bottle base and a splash of color that can be used to personalize your little one’s bottle. And of course, like all Pura products, the bumpers are BPA-free, Non-Toxic Certified, 100% medical grade silicone and 100% plastic free!