The Summit X3 offers exceptional performance and maneuverability on any terrain. This stroller and jogger hybrid is conveniently equipped with an all new remote swivel lock that is mounted on the handlebar. Simply flip the lever to lock the front wheel straight when you're off for a run or release to swivel mode in one step for walking without having to touch the front wheel. This tandem stroller features Baby Jogger's patented quick fold technology so you can fold the Summit X3 with one hand, the universal accessory mounting bracket to accessorize with ease, an improved all wheel independent suspension system and hand operated rear drum brakes offer increased control for added safety on hilly terrain. The Summit X3 sports 16" rear and 12" front quick release pneumatic tires, a padded seat that reclines to a near flat position and a vented seat top with weather cover to increase airflow within the jogging twin stroller when reclined. Also featured is a large adjustable sun canopy with peek a boo windows and side ventilation panels, an comfortable handlebar with wipe clean grip, a seat back storage compartment, a large under seat basket, adjustable five point safety harness with shoulder pads and a rear parking brake. The Summit X3 is a great solution for parents who want one stroller that does it all while maintaining all the style and safety you'd expect from Baby Jogger. Maximum weight capacity is 75 pounds.