Perfect casual summer leggings for hot, humid weather.  These are made of a material much like a thick pair of tights or stockings.  They're super stretchy and very comfortable.
In beach towns, Walgreens sells a similar type of leggings in their tourist clothing section where they have t-shirts and shorts with logos for the local area, except the Walgreens version is thinner and more see through.  This version is better/thicker quality and has a wider waist band.
I bought 4 colors:  neon green ( which is more yellow than green), fuchsia (getting a good photo to accurately show this color is a challenge but they are a very rich and pretty fuchsia/raspberry pink color) I love it  ; the charcoal (looks black in my photos but they really are charcoal as expected--it's a nice color too); and white (also as expected--nice white white).
I'm not so fond of cotton leggings when I'm exercising outside or just running around on a casual day because it's crazy humid here. Cotton makes me feel hotter and the weight of it in our humid weather feels yucky.  Not to mention if you're a sweaty girl like me, once the sweat dries--Pew!  Sweaty cotton really stinks.  Ugh!  For me this tights-like material is a dream come true.  It dries quickly and doesn't create that locker room odor when I sweat.  Also sweat stains are much less visible.
The fit is fine for me.  I'm a bigger girl with lots of hips and junk in the trunk--normally wear 14/16 pants and fill them out.  These pull on with ease and feel comfortable all over.  They're somewhat see through on my butt however I've got A LOT back there AND I've got wide hips.  Most people could probably wear these and they won't be see through at all.  I just wear a tunic length tops and tunic length tanks with these and it's great.
The bright colors are fun for the summer days to come.