The LBX BDUs allow for Knee Pads to be inserted into the Pants, however the Tops don't allow for Elbow Pad inserts.
For about $150 (if you ship it to the States and pick it up) or $200ish+ (if you ship it to Canada, price will vary depending on custom fees) though, you are getting a BDU that is similar to Crye cut and quality, and is 100x better quality than any clone BDU.
http://lbxtactical.lbtinc.com/apparel/top-bottoms.html
Honestly though, had I not bought a LBX BDU, I'd get getting me some UR-Tactical Kryptek.