AKRacing Masters Series Pro models use PU! Have a positive impact on your health cold-curved foam for maximum comfort and durability % more foam... Pillows to encourage good postu. What AKRacing Had to Say “You’re not the king — yet, but that does not mean you can’t get it all! Featuring all the minimal seating essentials, EX is the true AKRacing performance chair .... "/>Akracing core series ex review