No one would argue that it’s not a good idea to use a energy-replacement drink like First Endurance EFS on a ride of any duration or intensity. The only argument you’ll get, in fact, is from your taste buds when you try to swallow a mouthful of EFS after you’ve been riding for 2 hours on a 90-degree day. Warm energy drinks (or just plain ol’ water) are fairly awful when they’ve been simmering in a plastic water bottle for awhile. Hence the invention of the Polar Insulated Water Bottle: It keeps cold drinks icy for a long, long time — time enough for you to palatably empty your bottles at the prescribed rate. Polar has dominated the insulated bottle market for time immemorial for one simple reason: Their bottles work. No matter how hot it gets, liquid stays cold. Try one just once and you’ll be a convert for life — and you’ll never stand for lukewarm drinks again. Available in 20oz and 24oz sizes.
- The Original Insulated Water Bottle – As the first to make insulated, BPA-free plastic sports water bottles, Polar Bottle has had over 20 years to perfect keeping liquids stored and cool for twice as long.
- Ultimate Thermal Protection – The double-wall construction of our insulated water bottles creates a thermal barrier of air to keep heat out and cold in. Foil layers reflect solar rays for additional thermal protection. Dishwasher and freezer safe.
- 100% BPA-Free Water Bottles – Polar Bottle water bottles are and always have been 100% BPA-free and phthalate-free. Constructed of durable, lightweight and FDA food grade approved LDPE.
- Sports or Bike Water Bottle – Our 24 oz. size, the first size we made and our top seller today, is the active way to hydrate. Take it everywhere you go, from a run to a drive to a bike ride. Wide mouth accommodates ice cubes and makes it easy to clean. Removable carrying strap offers extra convenience.
- Made in the USA – Polar Bottle Insulated Water Bottles are proudly made in the USA to reduce environmental impact and support local economies. Designed to last, each one of our water bottles comes with a lifetime guarantee.