The redesigned?Baby Jogger Summit X3 Double Jogging Stroller outmaneuvers other jogging strollers on any terrain. And like you, this stroller/jogger hybrid is made to tackle more. Air-filled rubber tires, all-wheel suspension, and a unique, hand-operated deceleration brake provide increased control and added safety as you hit the pavement, making you unstoppable. Its striking all-black design raises the bar on style and features reflective accents for better visibility in the streets. This jogging stroller's front swivel wheel easily locks for jogging or running. The Summit X3 Double sports padded near-flat reclining seats and vented seat tops to increase airflow when reclined. Large, adjustable sun canopies with mesh windows and mesh side vents, plenty of storage, one-action compact fold, and a rear parking brake complete the Summit X3 Double Jogging Stroller. Customize your running stroller with the following available accessories (sold separately): Baby Jogger/Graco car seat adapters, and weather shield to protect from the elements. The Summit X3 Jogging Stroller is designed to keep up with you as you hustle with 2.