I got these because they were "Tall Man",  and all standard sizes I bought were about 6 inches too short in the legs.  These fit will with a little room to spare.

Some reviews said they itch,  I didn't have any trouble with these (and my legs are sensitive). I've worn them 48 hours straight while camping.  When I first pull them on, the rough weave did feel like it might be irritating,  but these are a little loose on me,  so they weave doesn't dig in as it would if you got a smaller size that might be tight on your leg.  So if you are worried about itching, I'd suggest a larger looser size (say XL instead of L);  the cotton material itself causes no problems.

I also bought a pair of Jockey brand; for comparison: Jockey is a little more comfortable, and a bit sturdier material, but twice the price.