This water bottle is specially designed to give you the extra capacity needed for today's off road, gravel and out of the city rides. Want to ride 100 miles non-stop? A pair of these bottles will allow you to carry 76 ounces. Since they are clear it will allow you to see how much liquid you have left or need to drink. The clarity of the mpurist bottle that we designed also sports the Producing Better Riders logo which is only available at Bike Cycles in Wilmington, NC.