Water for the Boys
As in any team, each member has a job (or various jobs to do) in the pro peloton the job of going back to the team car, retrieving as many bottles as one can carry and then riding back up through the peloton passing out the bottles to the team goes to a Domestique. He is usually a younger rider, or a strong rider that doesn't have a hope for the GC and hasn't been assigned to looking after the team leader. You will see these hard working guys doing this task on the steepest of climbs, carry 20 extra pounds of weight by virtue of the extra bottles, then riding pass many members of the peloton handing out refreshments like a beer man at the stadium. This is FDJ who have come to the front of the peloton in hopes of catching the break away so that their sprinter has a chance for the stage win.