The OMP Rib Protector features a simple but effective design made using a lightweight shock absorbing foam which is deigned to spread the loads of impacts to protect the ribs against injury. The waistcoat design makes it easy to put on and remove and two adjustable front straps provide a wide range of adjustment for a secure and comfortable fit.Shock absorbing foam protects the ribs from impactsWaistcoat design makes it easy to put on and take offElasticated rear straps allow for a close fit without restricting movementAdjustable front straps have a wide range of adjustment for a secure and comfortable fitSizing:XS - Chest Circumference 65-75cm (25.5-29.5")S - Chest Circumference 75-85cm (29.5-33.5")M - Chest Circumference 85-95cm (33.5-37")L - Chest Circumference 95-110cm (37-43")XL - Chest Circumference 110-120cm (43-47")