CoolCore™ 隔熱幼兒訓練杯，8 盎司 - 可轉換為水瓶 [Y12047A1]

The double-walled stainless steel interior actually keeps his water cold through the whole playdate, which is a huge win for summer. The trainer cup-to-bottle conversion is genius, and the lid clicks on securely enough that I don't worry about leaks in the diaper bag.

I was worried the stainless steel interior would make it too heavy for her little hands, but she manages it fine. The double-walled design actually keeps her water cold through a whole afternoon at the park, and the lack of clanging metal when it hits the floor is a huge plus.

My toddler dropped this cup three times at the park today and not a single leak or scratch on the peach mint finish, plus the drinks stayed properly cold for our whole hour out. The stainless steel interior really does the job without that annoying metal clanging sound when she shakes it around.