Peg Perego Ypsi Stroller City Grey. The ultimate eclectic stroller for practicality and design. Easy to manoeuvre, with real urban style. The Ypsi stroller is ideal for ensuring easy manoeuvrability in busy streets thanks to its narrow chassis, only 51 cm in width. Set off on your next adventure with no holds barred, just the way you want to. Be Ypsi!