Our Ironman stroller is designed for parents dedicated to an active lifestyle. The Ironman strollers are the lightest of the BOB line, and the high-quality slick tires minimize rolling resistance while the stiffer suspension maximizes maneuverability and response. Like all of our Sport Utility Strollers, the Ironman is versatile and portable, so it can be easily packed into a car, and serve all of your stroller needs. KEY FEATURES Lightest of BOB strollers. Adjustable tracking. Fast, compact and simple folding system, shock absorber suspension system with three inches of travel (wheel movement), padded shoulder harness for added comfort, red plastic pull rings for easy harness adjustments