Bought a pair of Kryptek Sonora pants, fit fine in the waist but are very snug in the calf area, to tight for my liking. Anybody recommend a pant that is lightweight and is loose fitting in the legs?? I have Kuiu attack and sitka ascent. Still a little snug in legs. I have a knee replacement and its still swollen so want a pair that is very loose in the knee and calf area.