10/14/11 7/08/11 POPSUGAR Fitness Healthy Living Insulated Water Bottles and Other Gear to Keep Water Cold Gear to Keep Your Water Cold When Exercising in the Heat July 8, 2011 by Jenny Sugar 41 Shares Chat with us on Facebook Messenger. Learn what's trending across POPSUGAR. View in slideshow Thermos sponsored a recent study with leading fitness researchers and discovered that cold hydration increases performance when exercising. Sipping down cold water (40° F) has been shown to keep a person's core temperature down, and drinking enough water will help you exercise longer and harder. I'll drink to that! Depending on the length of your workout, whether it's a 30-minute run or a 6-hour hike, here are some items you'll need to keep your water frosty cold in the Summer heat. Under Armour Vacuum Insulated Bottle For easy access to your cold water, Thermos makes this Under Armor makes this flip top insulated bottle ($28 for 18-ounce bottle, $30 for 24-ounce bottle) made of unbreakable stainless steel. It's leak-proof, and keeps your water cold for 12 hours. The larger size also has a rubbery grip on the bottle so it's easy to grab and hold onto. Plus it comes in other shiny bright colors besides your basic silver. Under Armor makes this flip top insulated bottle $28 from shopthermos.com Buy Now Klean Kanteen Wide Insulated Bottle This BPA-free stainless steel insulated bottle made by Klean Kanteen will keep your beverage cold for more than 24 hours! It's leak-proof and the wide mouth makes it easy to clean. If you ever want to use it for coffee or tea, you can get a different top ($4) to convert it into an insulated mug. It comes in three sizes, 12 oz. ($23), 16 oz. ($26), and 20 oz. ($28), and a variety of fun colors. 12 oz. $23 from kleankanteen.com Buy Now 16 oz. ($26), and $28 from kleankanteen.com Buy Now 20 oz. $28 from kleankanteen.com Buy Now Nalgene Bottle Sleeve This neoprene insulating sleeve ($11) will allow you to use the wide mouth 32-ounce Nalgene bottle you already have. Just slip it on over ice water and it will absorb condensation, and keep your beverage cold much longer than it would without the sleeve. If you have the 24-ounce OTG Nalgene bottle, use this sleeve ($21). neoprene insulating sleeve $11 from amazon.com Buy Now sleeve $21 from amazon.com Buy Now CamelBak Insulated Tube with Flow Meter If you prefer carrying your water on your back using a CamelBak, this is a must-have accessory to keep your water cold. The Antidote Insulated Tube with Flow Meter ($39) keeps the heat out and the cold in, but it also keeps track of how much water you drink and how much is left in the reservoir. Antidote Insulated Tube with Flow Meter $39 from camelbak.com Buy Now Platypus PlusBottle Holster Check out the Platypus collapsible PlusBottle. It holds one liter of water and is 80 percent lighter than a regular hard plastic water bottle. You can fill it halfway with water, freeze it, then stick it in the holster to keep your bevvy chilled for hours. Once the bottle is empty, you can roll it up and stick it in your pocket or backpack. Summer Exercise2011 SummerLayoutWater BottleHealthy LivingHydrationUnder ArmorKlean KanteenInsulated BottleNalgene Bottle SleeveInsulated Tube With Flow MeterCamelBakPlatypus PlusBottle Holster Get Results With Our Fitness Newsletter You're subscribed! Sign Up For Our Newsletter Select topics that interest you Running Weight Loss Yoga Working Out Sign up with facebook By signing up, I agree to the Terms & to receive emails from POPSUGAR.