Review on Be Seen And Stay Safe With Our Reflective Running Gear: Ankle Bands, Wristbands, And Leg Straps For Cycling And Biking by Charles You

I wear these bands on my upper arms when I bike at night and they are doing a really excellent job of reflecting the car lights. They are extremely flexible, and take up very little space: sometimes I just put them in a pocket when I get off the bike and don't have a bag on me. Velcro works great so I am happy not to have to clip on anything on my clothes. Great items overall.