YMGSCC Back Correction Students Adult Fashion Posture Correction Seat Posture Belt Invisible Anti-hunchback(Grey)

Shoulder belt adjustment, waist, shoulder can be adjusted freely Mesh back, comfortable and breathable fabric, cooling and not stuffy, breathable and thin Perforated fabric, comfortable and breathable, refreshing and fine. Adjustable elasticity at will, fits the body Adjustable shoulder straps, fixed square buckle support, square buckle position only design, at the end of the shoulder straps will not have an extra part, will not cause an uncomfortable feeling on the back Quick operation and convenient use.