This awesome review for PlanetBox BottleRocket says:
“Here are some of the things I love about it:
• Let me start by saying it's dishwasher safe! Most of the stainless steel bottles I have found are recommended for hand wash.
• It kept my daughter's water cold until lunch.
• Absolutely no leaks.
• I love the open spout drinking because she actually drinks more that she did with a straw cup.
• I usually send her water in her lunch but we tested some almond milk the other day in the bottle...it kept it cold and came perfectly clean afterwards - success.”