Cold fusion technique without heat, also known as hand-tied wefts. Probably one of the most popular techniques on the market since 2019. Weft extensions provide exceptional coverage, allowing for significant volume and fullness in the hair. Our packs contain 50 g of hair, for a total of 3 wefts. The extensions are reusable and must be installed exclusively by a professional. Typically, weft extensions should be maintained every 6 to 10 weeks, depending on hair density.