Watching today’s stage I got the question - I thought I had noticed this before, so I searched Cyclingnews… here they are:
http://www.cyclingnews.com/photos/2005/tour05/?id=tour058/JD05tdfstg805
Hincapie’s sleeves appear longer and tighter fitting (like a skinsuit) than the “regular” sleeves on Discovery’s jerseys. Anyone care to elaborate?