Used Forcefield back protector, size : Large // waist to shoulder measurement: 500 t0 530 mm( I'm 6'2 ). Bought a few years back, was top of the (Forcefield) line.....similar high end back protectors at Forcefield now cost $ 140 to $ 180.00. No issues, no broken strap, near Excellent condition. Asking $ 70 + shipping ( from CA 90046 ).