Small and lightweight, the 12 oz. Kid Kanteen Classic with Sport Cap 3.0 is the natural progression from a Sippy configuration. The entire cap is BPA-free, super durable and the new soft silicone spout makes the Sport Cap 3.0 safe for new teeth. The 12 oz. size fits into just about any cup holder, stroller, or car seat. And it's large-mouth design fits ice cubes and makes cleaning simple. The super durable and leak proof Loop Cap is safe in a lunchbox or backpack. Also BPA free of course!