For many years, I owned another set of uv sleeves made by another company. I can't remember what they were called after I lost them and I'm not sure I would have reordered them if I did. They had their drawbacks, particularly the fact that, since they had no elastic they didn't stay up. They also weren't long enough to cover my arms if I was sleeveless and, since they only came in white, they were very noticeable. If I remember correctly, they were also much more expensive. These have solved all those problems at a pretty reasonable cost. They don't drop down, (size large) they're long enough to cover my arms all the way up and, since I ordered beige (which is sort of flesh color) they don't stand out as much. Nevertheless, I can't say I'm delighted: Yes, they stay up, but they are not exactly easy to pull up. I scratched my arm with my nails trying to put them on and drag them up. The tightness is not uncomfortable--once they're on--but getting them on takes some getting used to, especially since the ones I used before were, literally, like sleeves. These are more like support hose for the arms. Since they have a thumb hole, there is a right and a left sleeve and an inside and outside to each sleeve. My old set had a sort of flap beginning at the wrist to cover the top of the hands, almost to the knuckles. These are completely tubular from top to bottom (with a thumb opening). They also cover the hands all the way to the knuckles, but the problem is that they cover both the top and bottom of the hands. I don't like this for two reasons: first, it makes the sleeve into a sort of half-glove which is gives you a slippery grip if you're using them while driving. Secondly, the bottom of the hand gets soiled requiring more frequent laundering. They are no cooler or warmer than my old set and take up less room in my purse than the old ones. They also air dry much quicker than my old set. They are 87% cocona fabric(not sure what that is, but it's related to coconuts) and 13% spandex. The label says it could be tumble dried and maybe I will next time to see if it loosens up a bit. Notes added almost a year later: I really regret getting these. The sleeves didn't stretch or loosen up, they remained hard to pull on despite use and laundering. (Some may consider this a benefit). Frankly, I just stopped using them because struggling to put them on was one of those hassles I tend to postpone or avoid, and the snug fit was bothersome. I just put them aside and eventually ordered another brand that has worked out a lot better. (They are SunGrubbies brand, which Amazon carries, but not the "driving sleeves" I ordered and am happy with.)