What is the fabric composition for the Merino Wool Orbit Baby Infant Car Seats? November 12, 2020 18:20 Updated The Merino Wool Orbit Baby Infant Car Seats are a blend of 65% Merino Wool and 35% polyester. Related articles Why a Merino Wool + Polyester blend? Is the Merino Wool Orbit Baby Infant Car Seat fire resistant? What is Merino Wool and why is it so great? Is it safe for my child to wear a winter jacket in the car seat? Are there any dangerous chemicals in the Orbit car seat?