Will be interesting to see if certain lines/breeding of pedigree whippets have produced better coats/skin.
In over 5 years my whippet has never had a skin tear, Ive seen him scrape/knock barb wire whilst jumping and the result has been nothing more than a red scratch, he's took the same tumbles, worked in the same lands any dog Ive ever owned has. Feet have been sound. The only real skin injuries he has ever had have been to his face, and toes, holes rather than tears. His coat ranges down from approx 1cm in length, much longer than other whippets i see. People have always thought he must be