Email from client:\n"What does the R and H mean when added to the color number?"\nIn the Raquel Welch line, the styles can either have regular synthetic fibers or heat-friendly synthetic fibers. The product description will let know what styles are regular are heat-friendly fibers, but the color swatches also give a clue. If the swatch starts with just an "R" that means the style has regular synthetic fibers, but if it starts with "RL" it has heat-friendly fibers. The "H" basically means that it is a highlighted color. If you see "SS" at the beginning or end of a color swatch this stands for "Shadow Shades" and means that the color features a darker color at the root.\n\nThis is an excerpt from our CysterWigs Knowledge Base. Check it out on our private site to see over 500 articles all about our store, wigs, and how to wear the hair!