I have been searching high and low for nontoxic leggings that are not a cottony or brushed feel. I work out pretty hard and prefer leggings that stay up and are sleek. These are great! They are not a cottony feel and are more like tech fabrics but without the toxic chemicals (I think?).
For reference, I am 5'7" and 146 pounds. I bought these in a Medium and they fit really well. These are not extremely compressive but they are worth it because I trust that they are nontoxic and from a conscious company. The only issue is the seam in the waistband. The way it is sewn can cut into your belly if you do not have a lowfat body. I have shown it in the photo.
Other than that, I think these leggings are awesome! They are not thin so I would not recommend them for summer, but I also live in the South where it is very hot and humid. During the summer and fall I rarely wear leggings for working out.
I really like the leggings and will continue to buy them from tentree. I would love to see some in other colors and with pockets!