Sigma brushes are high-quality makeup brushes made with exclusive synthetic fibers, SigmaTech and Sigmax, which are specially engineered with extremely thin fibers to efficiently collect and deliver not only powder but liquid and cream products too. These fibers are designed to absorb as little product as possible, so it goes on your skin, not get lost in fibers. Sigma brushes are made with hypoallergenic materials and are carefully hand-crafted to last a lifetime. The handles are made from carefully selected, lightweight, high-resistance wood made from renewable sources before receiving eight generous layers of prime coat and paint perfection. The metals are all thick layers of chrome, copper, or gold guaranteeing lifelong shine and protection. Sigma brushes are waterproof, and their ferrules feature patented interlocking technology with double-threaded engineering, which firmly attaches the ferrules to the handles unlike conventional brushes which are typically glued or pinched. The tight seal created by this interlocking technology, combined with the solid, polymer-based handles, make Sigma brushes waterproof. Sigma brushes are vegan, hypoallergenic, and antimicrobial to protect your skin. They are designed to absorb as little product as possible, so it goes on your skin, not get lost in fibers. Quality brushes are better for your skin, and they should feel soft and gentle against your skin. If a brush feels rough and scratchy, then it is of low quality and should not be used on your skin.