DetailsOut Of Stock Maxi Cosi Pearl Smart i-Size Car Seat Nomad Grey £199.00 Meet the safe Maxi Cosi Pearl Smart i-Size Car Seat Nomad Grey. The Maxi-Cosi Pearl Smart i-Size is used in combination with the FamilyFix One i-Size base (not included). The Pearl Smart i-Size offers state-of-the-art safety performance by complying with the latest i-Size (R129) car seat legislation. This enables up to 105 cm (approx. 4 years) of rearward-facing travel.