Our 20” fill in hair extensions are discreet clip-in wefts designed to add targeted fullness through the front, sides and temples where hair is often finer or shorter. The flat root-mimic base, with hair individually placed into the band, sits close to the scalp for a clean, natural blend with no glue or bonds. The 20” length adds visible length through the front while maintaining a smooth transition into your natural hair. Thin hair types typically need 1–2 packs, while medium to thick hair types may prefer 3–4 packs.