A high-performance, lightweight, ergonomically constructed guard for the ribs and kidneys, the Bionic Rib Support incorporates intelligent adjustment features to offer kart drivers a supremely comfortable, customized and supporting fit. Technical, multi-layered main construction for optimized performance fit, protection and comfort: Comfort: Advanced, soft poly-lycra inner lining means protection can be worn under or over garment. Impact & vibration performance: dual composition padding incorporating 3mm high density poly-foam layer laminated with 4mm absorption EVA. Durability: External 500 dernier Cordura outer for high resistance to abrasion. Protection: Dual-density, strategically positioned, ergonomically shaped protectors incorporate fiberglass core and robust PE hardshell outer for excellent impact and shock dispersion. Light: Incorporates specially selected materials and components to offer crucial weight-saving performance. Central adjustable back panel with Velcro attachments offers complete range of fit allowing protection to be worn under or over garment. Fully adjustable front strap with a D-ring closure features elasticated section for comfort. Adjustable shoulder straps constructed from highly breathable 3D mesh and incorporating elasticated gusset for snug fit. Perforated rear for comfort and ventilation.