Features: Supports Proper Posture and Relieves Back Pain Strong breathable fabric makes it more comfortable to wear without stuffiness feeling Can be directly worn under clothing Adjustable straps for comfort, help pull the shoulders back to stand tall & sit up straight Supporting design helps correct poor posture, pulls shoulder back to correct posture Provides gentle back support, prevention of adolescent customary humpback & bend down Can wear the brace while work, at home, exercising or shopping etc Specification: Color: as shown Material: Neoprene + Nylon + Magnet Size: S | M | L | XL Size ? ? Height ? ? ?Waistline S ? ? ? ?130-160cm ? 78-86cm M ? ? ? ?152-170cm ? 86-92cm L ? ? ? ?165-180cm ? 88-97cm XL ? ? ? 175-195cm ? 96-102cm ? ?? Note: 1. Please allow slight 1-3cm difference due to manual measurement and a little color variation for different display setting 2. Size doesn't fit all, please carefully check size chart and select the size based on your real size Thank you and nice day! Package Includes: 1 x Back Posture Corrector