The Baby Jogger(R) Summit(TM) X3 Double Jogging Stroller outmaneuvers other joggers on any terrain with air-filled tires, all-wheel suspension, and a hand-operated deceleration brake for increased control and added safety as you hit the pavement with 2 in tow. Features: The performance-ready jogging stroller enables you to hustle with 2 All-wheel suspension makes for a smooth ride, whether jogging or walking, on any terrain The unique, hand-operated deceleration brake and handlebar tether strap keep you in control whether you need to head downhill or pick up the pace Air-filled rubber tires and the stroller's locking front swivel wheel make it easy to quickly switch between jogging and strolling modes One-action compact fold makes it simple to store Near-flat reclining seats and magnetic side vents for increased air circulation will keep your children cool and comfortable Create a travel system with a Baby Jogger or Graco infant car seat (adapters sold separately); consult your pediatrician before jogging with a baby under 6 months old Convenient seatback storage and a large under-seat storage basket provide enough space so you always have everything you need within reach UV 50+ canopies with mesh windows keep children shaded while allowing you to easily check in Meets Disney size requirements Limited lifetime manufacturer's warranty on frame Supports children up to 50 lbs.