Set Includes Modular nesting system is comprised of a car seat base, car seat outer shell and keep-close inner carrier Features Integrated car seat and carrier nesting system built to help parents move about effortlessly Rethread harness adjustability Cross-body flex-strap features 4 modes of Carry including Cross-Body Carry, Handle Carry, Standard Carry and Stroller Carry Lightweight inner carrier can be easily removed from the car seats outer shell with the push of a button along with the use Maxi-Cosi Coral Xp Car Seat-Kids