Single jersey is a kind of thin fabric, refers to the work of manufacturing underwear fabrics, texture clear, cloth light, fine texture, feel is smooth, at the same time, single jersey with vertical and horizontal has good extensibility, lateral is larger than the longitudinal extensibility, hygroscopicity and air permeability of single jersey is better, this has become the manufacturing various styles of sweaters and vest. Pure cotton fabric has good moisture absorption and air permeability, soft and comfortable to wear. Rayon fabric is easy to absorb sweat, breathable and smooth to wear; Disadvantage is not too strong, avoid washing forcibly twist. Cotton and chemical fiber blended sweat wiring ring clear, fine texture clean, good moisture absorption and air permeability. Pure chemical fiber sweat cloth fluffy soft, good elasticity, bright color; Disadvantage is poor moisture absorption, not easy to absorb sweat, wearing stuffy.