David E.wrote a review of Troy Lee Designs KG 5450 Knee/Shin Guard Guard on April 18, 2013
These do seem to run a little large. I'm 6' 180 lbs so I originally ordered large but they were way too loose. Swapped them for medium and they fit me perfect. Oddly, the large EG 5550 elbow gaurds fit fine.
Anyway, nice design, solid construction, and quality materials. Theses knee guards are very comfortable. Haven't had the chance to put them to the test with a crash yet, but its only a matter of time.