Swiveling-locking front wheel swivels to maneuver tight turns with ease or locks forward for increased stability when jogging or on rough terrain. Adjustable padded handlebar offers 9 positions to create the perfect fit for parents of all heights. State-of-the-art adjustable suspension system offers 3 inches of travel and 2 stages of weight support for an ultra-smooth ride. Easy 2-step fold for convenient transportation and storage Travel system-ready when using the BOB Infant Car Seat Adapter (sold separately). Pair with a BOB B-Safe 35 Infant Car Seat by Britax or with other major brand car seats. Air-filled tires on high-impact polymer wheels make for a smooth ride whether on-road or off-road.