90% Polyester Blend, 10% Faux Leather A large comfortable seat with a near flat recline allows you to use from birth to 50 lbs. Seat includes an all-weather boot. Travel system compactible with any Peg Perego Primo Viaggio 4-35 infant car seat. Car Seat Adapter IKCS0018 is sold separately to make the Vivace compatible with other brands of car seats also. Soft-ride wheels, rear shock absorbers with visible springs and ball bearings ensure agile steering on all terrain. Swivel front wheels and easy one step brake. One hand steering with eco-leather handle for the utmost comfort which makes a centralized fold. Compact folding with the seat secured in either forward or rear positions. Large adjustable UPF 50+ hood with a peek-a-boo window. Large easy-to-access basket with reinforced rigid bottom allowing for heavy loads.