No base needed, this infant seat is ideal for travel. As stylish as it is intuitive, the 2-click LATCH system allows for quick and seamless install. Lightweight and versatile the Urban Mobility is your perfect travel companion. Features: -No base. Travel light: Equipped with built in LATCH technology the Primo Viaggio 4- 35 Urban Mobility can be installed without a base. Install with the built in latch connectors or the Euro belt path method. FAA approved. -Anti-Rebound Bar: When the handle is placed in the forward most position, it acts as an Anti-Rebound bar, which helps to manage stability in case of a collision. -Travel System Compatible: Compatible with most Peg Perego strollers. Works seamlessly with top stroller brands, using compatible car seat adapters sold separately. -100% Fire Retardant Free: Free of harmful chemicals the breathable Fresco Jersey fabric is naturally Fire Retardant, while staying soft for baby and easy to clean for parent. -Extendable Pagoda Hood: An easy to use zipper allows hood to extend forward, completely protecting baby from the elements. The hood is UPF 50+. -Dual Stage Cushion System: First stage cushion for infants 4lbs and up offers extra support on newborn’s neck and bottom. Second stage cushion correctly supports growing baby. Both cushions help to keep baby’s head properly positioned and are made of Fresco Jersey Fabric. -No Re-thread Harness: Easily adjust to six different positions with no rethreading required. Even with infant in the seat. -EPP & EPS: Superior comfort and safety, the energy absorbent foam protects head and torso from impact forces. -Kinetic Pods: Kinetic Pods help to move forces away from your baby in case of a side collision. Weight limits: 4-35lbs Maximum height: 32 inches Dimensions: 26.5" L x 17" W x 24" H Product Weight: 10.8lbs