yeah... wash your hands once in a while.... lol
kidding aside, i have 2 pairs that are atleast a year old, if not more. 1 pair has seen near daily use during the rain and the other pair has seen near daily use during the sun. 3rd pair is atleast 8 years old (was my neigbor's, given to me by him) and still very usable. just out of style so i keep em as a backup. i have a 4th pair that are mesh and will soon start their 2nd season.