Title: Leaky Kanteen!!
Product review: Purchased this to avoid as much plastic as possible. The top portion is still plastic, which was disclosed and was no big deal, but this leaks everywhere. Bad design of the suction cup thingy that attaches to the Sippy nipple. When the baby or toddler draws liquid from the nipple, it creates a vacuum effect and draws liquid out of the air hole located opposite side of the suction nipple. As long as no one sucks the nipple, it does not leak!? An expensive piece of junk now! If you keep it in the fridge, the content becomes too cold for the baby since it's made of stainless steel metal - not ideal.
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