I have Fieldshire mesh pants for summer and they may have large sizes.  Competition Accessories  is where I ordered them.  Sizes seem to run correctly, I am a 32 and that's what I ordered.  They come with a waterproof liner and it will make you sweat right fast so remove it for summer riding.  Knee pads and hip pads are included along with some kind of padding on the rear end.  I really like them and have never gotten hot except at stop lights.