Podiatrist Dr. Roy Archambault discovered that one out of five of his surgical patients would get their cast or bandage wet, requiring him to redo the cast or bandage. He developed a latex cover that allowed the wearer to get into water and still stay dry. Archambault quit practicing ten years ago and went into business. His company, Wilmington-based Xero Products LLC, sells the XeroSox, a latex sleeve that fits over a cast or bandage. A hand pump removes the air. The company employs thirteen and projects revenues in 2004 of $1.2 million.