Hairstyle for girls Cannot dye wig due to being synthetic fiber. Ear-to-ear lace front for a more realistic look. Flex Combs on the sides for a secure fit. Heat Friendly Fiber – High quality heat friendly fiber looks and feels like natural hair; plus it can be styled with heat tools ( about 120-160 degrees). Cap Size – Impeccably tailored to fit smoothly and securely around the head, it’s ideal for an average head size.