The Polar Bottle Session Muck Mountain Bike Water Bottle is engineered for off-road riding — the integrated dust cover snaps over the mouthpiece to keep dirt, mud, and trail debris off the drinking surface. BPA-free squeeze design with the brand’s signature flow rate.
Use it as a primary mountain biking bottle, a gravel-grinder hydration bottle, a cyclocross race bottle, or any rough-trail riding scenario where mouthpiece contamination is a real problem. The dust cover flips out of the way for drinking.
Polar Bottle is made in the USA per the manufacturer’s Amazon listing.
