Great for toddlers, sippy caps are leak resistant and have steady flow control * Silicone sleeve provides a great gripping surface and helps to prevent breakage * Bisphenol (bpa), phthalate, pvc, polycarbonate-free and 100% non-toxic * Glass does not add a chemical or metal taste to your beverage * Dishwasher safe, easy to clean, bottle and sleeve can be put into the dishwasher together