I have used the same style 32 oz plastic bottle for years. I leave it out all day. I thought I didn’t care about the temperature of the drink. Turns out I was wrong! I love having my cold drink stay cold all day. 
This thing is large, because I wanted to hold the 32 oz I was used to. I haven’t carried it anywhere yet. But I’m already looking forward to having a cold drink with me out on the boat next summer. Refreshing!
I also bought a 16 oz. Since it is winter, I’ve been putting a warm drink in it. I would usually forget my tea and then drink it cold. No more! It was still so hot by the end of day, I had to leave the lid off to cool it enough to drink the rest!