Polar Bottle Breakaway Muck Insulated Mountain Bike Water Bottle - BPA Free, Cycling & Sports Squeeze Bottle with Dust Cover

Designed for mountain bikers, gravel grinders, and all weather roadies, the Breakaway Muck Insulated water bottle features a Muckguard™ cap cover that protects the Surge™ valve from whatever the trail dishes up.

The high-flow Surge Cap provides a sip or blast of water and self-seals to eliminate spills and splatter, even on your bumpiest rides.

Allowing you to take in more water with less effort.

Available in three sizes, including a new 12oz volume - which fits any frame size and/or full suspension bike with limited real estate for bottles.

The newly re-engineered Tri-Layer insulation takes Polar Bottle's recognized radiant heat reflective technology to the next level, keeping your liquids cooler, two times longer.

Whether you're biking on dirt or road, you'll stay refreshed long into your ride.