The tag calls these Luxtreme and the fabric content is not typical of fullux, which tends to be 70% polyester. You can see the back side of the material looks just like the front side.
For reference, here are the hang tag and fabric content of Brushed Animal Fullux Inspires:
Wee Space Pace Rivals or Parallel Stripe Runday crops but more like a textured lulxtreme. In fact, I dug out the tag to my Herringbone Inspires and the content in those is 66% Nylon, 18% Lycra, and 16% polyester. I thought they were stretchy and comfy, however. I don't have the best lighting at my house so I need to check them out in the three way mirror in the store but in my quick bend over test I could not see my pale blue underwear so I'm calling these opaque for now. I didn't expect to like these when I ordered them but I like them a lot. I tried pairing them with a couple of tops to see how the pinkish-tone went with a few things:
I really like them paired with my Blush Quartz Mesh What the Sport Short. If you have pale pink swiftlys and other tech tops, these crops will look fantastic with them. I thought my Vintage Pink Swiftly tank looked very nice with them, too.
I also wanted to see how Vintage Green looked with the crops since the waistband So Fly Butterfly print has green in it. Vintage definitely coordinates with the green in the print though I don't know about wearing this color with the crops since they are pink in tone.
I was also pleasantly surprised by the Biggie So Fly Butterfly Race to Place hat. I didn't expect to like the print so much in person. The hat is a lot more muted in person than it is in these photos. I thought my Heathered Poseidon Cool Racerback coordinated really well with the blue in the hat. I liked the print so much I ordered the Butterfly Go the Distance Shorts tonight.
Butterfly Race to Place II and Crosscourt Petal Race to Win Hat. I could not tell you the difference between these two designs, other than the clip closure - the shape, stitching, and fit seems identical to me.