First buy safety vest with wide reflective bands found at home improvement stores. Next buy a set of wide reflective leg bands, the best ones I've found is from Leg Shield, you get 4 bands for $17 and they are extremely bright. The leg band is highly important for older drivers because for some reason they can't see just a static reflector like the vest, but the up and down motion of the leg bands slaps their eyes better. England does require reflectors, including pedal amber on both sides and a red rear reflector, I'm not sure if the leg bands would replace that requirement for the pedals, but the leg bands are superior to pedal or shoe reflectors so I would use those primarily. There are also tires made with a reflective band on the sidewall.