Hydro FlaskLightweight Water Bottle 621 ml (21 oz) Trail Series - Vacuum Insulated Stainless Steel Reusable Water Bottle with Leakproof Flex Cap - Standard Mouth - BPA-Free - Jasper

Not cheap for a water bottle but keeps drink very cold for most of the day. Would get with the straw cap rather than the twist in/off as a lot more convenient. Lightweight compared to similar sized bottles. I use it every day.

I bought this for a trip to Disney World, I wanted a big enough and light flask to be able to carry around and refill all day and this was perfect, never leaked and kept water cold for the entire day!

Expensive, yes, but Hydro Flask certainly make bottles that, erm, do what they say on the tin. I haven't tried mine with hot liquids but it keeps water from my fridge nice and cold on a 5-6 hour walk. Fairly lightweight too.

Love the colour - does what it’s supposed to - keeps the water lovely and cold

I own many Hydroflask products and need larger water capacity for everyday and travels. The 40oz 1180ml gets me through the day and 12+ hour flights for hydration. Compared to the normal Hydroflask bottles, the trail series is 25% lighter. The slimmer profile means I can put in the side of the backpack easier.

Great bottle, very light, I've used it on several hiking and urban holidays and find it ideal.

These are now my go to water bottles - I have one for work and home. They are easy to clean and simple in design, but they look great and seem to keep water cool for a long time. They don’t develop any mould smell and are a easy to fit in bag etc

Having owned other vaccum sealed bottles, I didn't think I'd get the performance of this bottle considering it is so light weight.