Introducing our 12oz Sippy Tumbler, designed with both fun and functionality in mind!   The unique design is ergonomically tailored for easy gripping by little hands and is convenient to carry anywhere - from school to playdates. Our stainless steel sublimation sippy cup comes with two types of lide: a sippy lid and a sliding lid. Sippy lid with handle for ages 10 months and older. Starting as a sippy cup and gradually becoming a regular cup with slide lid.  Our insulation kids tumbler with lid is good for your children take it anywhere.