There have been a few posts on this but I have a set and love them. They are a bit bulky but are easy for me to get used to. Make sure you have pants that have tons of room in the knees. I wear THOR pants and it's a tight fit.
I have a pair and I love them. I don't know what size I have but they fit fine. I wear fox 360 pants and there is plenty of room for them. I have chicken legs and the pads make it alot easier for me to grip the bike. Previous to these I had a problem with arm pump and I had to think about holding on to the bike with my legs. My arms have not pumped since and the pads are wide enough that I just hold onto the bike without any thought of it. I really really like these. Excellent investment for me!
I bought a pair after reading about them on here, had them about 1 1/2 months now. I like em pretty good, had to take the seam apart near the velcro enclosure and cut it back because it was sticking through the fabric and wearing my leg out but besides that I've had a couple decent crashes and they seem good. Nice fit and comfortable too.
Love the protection, but I bought some new boots and they will not fit in the boots at all. That sucks :( I was also inbetween sizes and went a with the large. The slide down on my knee and chaf the top of my knee were the hinge is. On of those Knee brace socks would work realy well.
I have some of the AXO total movement guards and they are less bulky and the protection is O.K.
as for the fitting into boots/pants, what do you guys have and how well did they fit in? I have fox 360 pants which somone said fit in well and i have thor t-30 boots which are from thor so id think they fit in. without any pads on the top velcro strap on my boots overlap almost too much and almost doesnt go together if i want a tight fit so im thinking it should fit fine.