It keeps my drink cold the whole day and even after leaving it in a hot car for 8 hours it was still cold. I also really like flip top on these. It is easy to clean and when I am really busy I can chug some water faster. And they don’t leak.

The lids are poorly made. Its sad that such a nice insulated water bottle would have such a bad lid. However, i now own 6 of theses. Three for me and 3 for my husband. The price is amazing. They are easy to carry; keep my water cool if i leave it in the car even in 100+ degree temperatures.

Loved our other Zulu water bottles but saw they now come in stainless. We’ve used for a day at the beach or pool and water stays cold and refreshing. I’ve also left it in the car on a hot day and water remains cool. Love the bottle’s large capacity, and that it fits in the car cup holder or bike’s water bottle holder.

It did not last 1 week!!! Bottle was dropped Once and would not stay closed after that! Poor design, the push button just fell out.

Excellent tumbler if you don’t mind cold liquid poured into container becoming just cool. Ice must be added to keep cold drinks cold.

As with all SS bottles, its heavy. However, it keeps liquids super cold. Ice doesn't melt after 12+ hrs of use. Bottle mouth is a silicone, not plastic so doesn't get scratched up. There's a lock feature so no accidental spills.

The water stays cold and I love the lock on it so it doesn’t open accidentally…it’s slim enough for cup holders and I like the handle on the lid to carry it with…the price was right too for a 2 pack.

Just used on 5 hour drive GREAT PRODUCT Filled with ice at hotel the mouth was big enough to fill easily, just washed 2nd bottle that was left since 2 weeks since trip and it didn’t smell

Kept water with ice cubes in 100 degree temperatures on our motorcycle trip all day long!! We have had insulated water bottles for years, but these are by far much much better at keeping ice and water cold for over 24 hrs.

Love this water bottle. Locking feature works, and consistently works. Easy enough for toddler, child, and adult. Your ice will be good for more that a day. You won't be disappointed with these!