The Vivace chassis is light and ultra-compact. With the Vivace chassis, you can move about freely with style and peace of mind. 20 inches wide, it passes the elevator test, with ease. Top quality wheels ensure agile steering on all terrains. The Vivace chassis turns into a Travel System with the use of either the Primo Viaggio 4-35 Lounge or the Primo Viaggio 4-35 Nido. With the purchase of the Car Seat Adapter "IKCS0018" the Vivace is also compatible with most Maxi Cosi style car seats. The soft-ride wheels, rear shock absorbers with visible springs and ball bearings ensure agile steering on all terrain. You can adjust the front wheels, from locked to swiveling and vice versa. Wheels with high-visibility finishes are ideal even in the evening walks. User-friendly brake. Steering agility is guaranteed, even with just one hand. Centralized and compact folding. Great stand alone and space-saving features. The large, easy-to-access basket has a reinforced rigid bottom allowing heavy loads. High-visibility finishes make evening walks safer than ever. You can purchase a stroller seat sold separately to continue the use of the stroller chassis as a fully functionable stroller.