I bought out of my own pocket a pair of the Donjoy Armor Action braces. Look here:
http://www.donjoyarmor.com/index.asp
for more information. They were not cheap--about $400.00 a pair--but less than me paying out of pocket on my $2,500.00 deductable insurance. I wear one brace, without the knee pad, all the time while skiing. I am pretty sure my right ACL is torn completely (no cash for the MRI) as my knee will trick out if I don't pay attention to it, but with exercise and the brace, I can still ski well enough to do my ski patrol duties--just can't do the black bumps like I used to--I stay out of the bumps. The swelling is almost gone and so are most of the "ginding" noises I used to hear at night! I started taking glucosomine condoitin and I think it helps some--maybe just being active too helps more--but I stopped taking Bextra, Celebrex or Ibuprofen about 2 months ago.
I am going to see if I can get the parts from Donjoy to modify my MX brace for skiing so I can wear both at the same time. They have some sort of plastic thingy that is supposed to keep the braces from getting caught on one another when your legs cometogether, as in bump skiing. The MX knee/shin pads won't work with the ski braces.
I hurt my knee--hyperextended and smashed it downwards--while wearing the EVS-RS7 brace last August. The RS7 did not afford anywhere near the protection, support and stability the Donjoy brace does and I bet my knee would be fine if I had the Donjoy brace on last year. Side to side stability with the EVS RS7 brace in my opinion was virtually nil. Side impact protection was good, and the graphics were cool--but you don't see them with pants on! I have not worn a Web, but the mags said you needed socks or something under both the Web and RS7 to prevent chafing or blisters. I got nasty blisters from the RS7 and you can still see the SCARS!
You can also adjust the degrees of flex both ways on the Donjoy braces and they come with 4 sets of different stops, both ways. I use 20 degree hyperextention stops skiing, 30 degree riding, and no stops the other way. My legs are chubby, so they are a bit uncomfortable touching my heels to my buttocks, but you don't ride or ski that way! I am trying to lose weight--it is very hard!
I wear my Donjoy braces on my skin--for 8 hour plus rides--NO Problems! I wear the one brace on my right leg skiing on a 9:00 a.m. to 10:00 p.m. ski patrol shift, either on bare skin or with thin long underware--no problems.
The condile locator pad works really well.
I recently read reviews on the EVS RS7 and the EVS Web brace in Dirt Rider or MXA--can't remember which. (you know--the mags really don't tell it like it is because they want the adverisment money! If a mag says a product is junk--they lose out--that is what makes TT site one of the best!) The Web is the better of the 2 EVS braces, costs a bit less as a Donjoy brace, but does not offer you the protection and flexability of use as the Donjoy. It is designed to crumple so your legs don't break! Wow--I thought I was making a choice--save the knee and sacrifice the leg! Bones heal a heck of a lot better than joints! Easier to pin too! I don't think I want my braces to "crumple" because the next thing to go is your knee!
Both EVS braces are much too hot in my opinion, and the RS7 is not adjustable, is very hot and very heavy. You can swim with the Donjoy in fresh or salt water. It is lighter and cooler and the knee pad comes off without tools. I think it is the best off the shelf brace out there. Donjoy has been a major player in sports braces for a long time--but they are just getting into MX and extreme sports. Donjoy is the "official" brace of the US Ski Team.
I did not need a prescription to get my brace from Hanger Orthodics in Kalamazoo. Call Rider (appropriate name!).
Don't get a Donjoy Legend--the lower part is too long and will not work with ski boots, and will go way down into MX boots. The Armor Ski or Armor Action brace are about 2" shorter on the bottom and just touch the tops of my MX boots (retro look Hi Point pro GP) and leave plenty of space on top of my ski boots.