Yellow reflective tape XM-6034 is made with poly-cotton backing. It is used for High Vis clothing and helps to increase visibility in a daylight and at nighttime. Polyester blended with cotton makes this reflective tape more durable, than pure cotton tape.
This Reflective Material is a Textile Fabric coated with a layer of resin with numerous glass micro-lenses impregnated with a special glue into this layer. The light reflects from these micro-lenses and comes back to a car (or other source of light) making the person wearing reflective tape more visual in the dark.