These leggings are superb. I have many, many CRZ leggings in the Naked Feel fabric. While I really do love that type of smooth fabric, I experienced issues with the front seam. These SculptAir leggings are EVERYTHING in that the fabric is a bit thicker than the Naked Feel fabric, a bit more compressive, not see-through, and, yes, finally no CT/front cleavage. For reference, I'm 5'7", about 135-140, and wear a size 4 and 6 in Athleta. Also, I am short-waisted, and that is my only concern with these leggings. Having just a couple inches between my ribs and hip bones, I found the size of the waistband section of fabric to be too long and it made the V-section portion in the back come down pretty low on my upper glutes, or maybe I just have longer glutes, so to speak, and so that waistband section feels like it comes down a tad lower than I would like. That's in no way a deal-breaker because everything else about the fabric is just too wonderful. As for fabric qualities, it is very breathable, very sweat-wicking, and showed virtually no sweat at all. With the fabric being a bit thicker yet not brushed in any way, it was perfect for working with my resistance bands around my knees/lower quads. My other leggings with brushed fabric may feel soft and lovely, but the resistance bands cause the brushed part of the fabric to rub off and I end up with fuzz coming off my leggings. So the SculptAir fabric is perfect for my needs; squatproof, somewhat compressive, and no marks left behind from my resistance bands. As for sizing, although the recommendation was to order a medium, I went with a small and the fit was great save and except the waistband section feels slightly loose, so I ended up adjusting them occasionally. I will definitely be purchasing more of the SculptAir leggings because the stitching is very secure (no worries about stitching giving out when doing runner's stretches, etc.), the fabric is exactly what I've been looking for and suits my personal needs to a T, and the leggings are not all loose and baggy on the lower leg like some of my other leggings from other brands found here on Amazon. While these leggings are not super flattering on the glutes, that is easily remedied with sewing in a bit of elastic with my sewing machine in order to get a bit of glute contouring without that super scrunchy look and uncomfortable feel. Bottom line, I love these and will be buying more.