Review on 🥤 SENDESTAR 32 40 64 oz Insulated Water Bottle with Straw Lid and Sport Lid - Stainless Steel Vacuum Wide Mouth Sports Water Bottles Double Wall Sweat-Proof, BPA Free - Keeps Cold for 48 Hours or Hot for 24 Hours by Ryan Marx

This is the second bottle I've bought. As a teacher, it's important to me to have water with me every day so I don't have to use the drinking fountains that kids use. I top it up at 7am with a couple of ice cubes at a time and it stays cold all day. Sometimes I finish it at 8pm and the water is still cold! I'm considering a third bottle for my weekly line!