The single stroller that can turn into a double! The YPSI is a lightweight, full-featured stroller. Compatible with any Peg Perego Primo Viaggio infant car seats or with the Bassinet Stand by Me (both sold separately). Features: - Single to double: The lightest weight and most compact single-to-double on the market. The YPSI can grow with your family with the purchase of double adapters. - 4-Season Seat: The comfort-padded seat keeps baby cozy in winter and easily converts to a breathable mesh seat in summer. Its washable seat insert and wipeable mesh backrest allow for quick and easy clean-ups. - Magnetic Buckle: One-hand magnetic closure for quick and easy release. Ensures your baby stays secure while making transitions effortless and quick. - Easy-Adjust Harness: The harness adjusts easily to baby's size. Detachable shoulder straps with snap fasteners. - Tilt-in-Space Reversible Seat: The comfortable reversible seat is approved for children from birth up to 50 lb. The Tilt-in-Space system makes it possible to use the large reversible seat in 3 modes, from seated to relaxed. Eco-leather open-close front bar. - Adjustable Footrest: Adjustable to different positions, the footrest adapts to baby's growth. - Top-Quality Wheels: Soft-ride wheels and ball bearings ensure agile steering on all terrain. The user-friendly brake system is easily accessible with one-foot operation. - Telescopic Handle: The telescoping one-piece handle accommodates users of different heights and the hand-sewn eco-leather handlebar adds a touch of elegance. - Easy Compact Fold: The most compact single-to-double on the market; the YPSI closes with one hand—even when the seat is attached! Once closed, the chassis stands upright for easy storage. - Extendable Pagoda Hood (UPF 50+): The large extendable pagoda hood protects baby from the sun and wind. The hood is also height-adjustable and follows the child's growth. - Roomy Reinforced Basket: Large, easy-to-access basket with added rear pouch to secure personal items and a reinforced rigid base allowing heavy loads. High-visibility finishes, including reflective trim, make early morning and evening walks safer than ever.