Ozon Arm Warmers
I got these warmers in white mainly for sun protection, and for a bit of warmth. These warmers are pretty thin, and they certainly are not the warmest out there (which is great for me and the sun protection thing). I haven't tried them in much heat yet, but I think they'll be okay. I really, really wish cycling companies would start making thin long sleeve jerseys for sun protection. There are barely any long sleeve jerseys out there that aren't made with thick, thermal fabrics.
These arm warmers are really well made, which you would expect from Gore Bike Wear, and are well designed. They're comfortable, and the gripper silicon on the upper elastic helps them to stay put. The asymetrical seams make for a comfortable, non-bunching fit. I'd say I'm a pretty average size woman, and the Small fits well. They're tight but not too tight along most of my arm, and they're slightly loose around my wrists.