I'd been hunting for a lightweight solid blend pant for exercise. Previously, I wore a Roadrunner Sports legging that was 86% polyester and 14% spandex. Those were hot and sweaty and did not breathe at all.Then came Bayleaf. The solid color versions have 92% cotton and 8% spandex and the gray and heathered versions have 55% cotton, 39% polyester, and 6% spandex. The description says its the charcoal and light gray with the lower cotton content. I assumed they had meant to include ALL heathered colors at 86%. I had hoped that they'd be 92/8, but they were 55/39/6. As I had guessed, heathered colors are not considered solids.So far, as far as comfort goes, I'm fine with the 55cotton/39poly/6spandex ratio though I did NOT want polyester. For me, polyester doesn't breathe as all manufacturers claim that it does and it doesn't tend to wick either; so, you sit or dance or hike or exercise in pants with puddles. Luckily, the blend that I got has enough cotton in it that it DOES breath, it DOESN'T irritate, and it seems to work fine.I am 5'8" tall and weigh 130 lbs. My weight is fairly evenly distributed though I do have a muscular rearend and thighs from all the squats I do. I purchased a size Small with a 32" inseam in navy heather (55% cotton, 39% polyester, and 6% spandex). I've worn them since they arrived, did my weight lifting and stretching/core workout in them and still have them on. No sweat puddles, no discomfort. They seem to have stretched out some -- which is an aspect of polyester that I really dislike, so I will wash them in the machine (cold) and tumble them dry. I need them to resize back down a bit or I'd just hang them up to dry.I'm thinking that the 92% cotton and 8% spandex solids will need cold wash and absolutely have to be hung to dry to prevent shrinkage. My future pairs will be solids: fuchsia rose, gothic grape, black, dark blue, and niagara. I couldn't tell from the photos if paisley purple and olive green would be considered heathered colors or solid, so I will not choose either of them.