I did this review http://www.snowboardingforum.com/equ...knee-pads.html
last year. Never had an issue with them touching my boot tops. I am 6ft and even if you are shorter the part that may overlap is thin spandex. You can also use the elbow pads on your knees and vice versa, only difference is the lenghts really.
Rad. Thanks. I've known about these from longboarding, but due to a series of shitty crashes I've started to seriously consider these for when I'm snowboarding. It's good to know though that I can switch the elbow pads around and wear them on my knees too. I'm not worried about the spandex, that part is thin enough that I probably won't know it's touching my boot.