“Still cold” is my motto when ever I take a sip of my water from The Swell bottle. This is my fourth one. I use them so much. The sad thing is I dropped it already and it doesn’t stand up very good ... 
I highly recommend getting a Swell bottle. I used to buy cases of bottled water. Now. I just fill my big swell bottle up about 3 times a day. Save money and the environment while staying hydrated.