Review on The Coldest Water Bottle: Vacuum Insulated Stainless Steel Hydro Travel Mug - Stay Ice Cold for up to 36 Hrs/Hot for 13 Hrs - Double Walled Flask with Strong Cap by Aaron Carney

I can't say enough about this water bottle. That's all they claim and more. It keeps my drinks cold for a ridiculously long time. I've attached a picture of what the ice looks like in this bottle after being out in the heat for 6 hours AND refilling it twice. The only thing people might like is the lid. Most people these days prefer a straw lid. I personally don't care, but some people might. Here's a short list of pros and cons I've put together. Bottle Large opening for fridge-style ice cubes Machine washable Fits in both my car cup holder and stroller cup holder Easily attaches to a backpack Floats! (great for river swimming) Cons: no other color options, may scratch exterior paint if dropped. By default there is no straw cover. water bottle.