Designed by legendary Niels Diffrient, Diffrient Smart™ uses form-sensing mesh technology to provide custom lumbar support for the user. In addition, Smart™ employs a weight-sensitive recline that automatically adjusts to the user’s body, all integrated into one, uniform U-shaped frame, without the use of clumsy levers or locks that can be broken or lost. The sleek and simple Diffrient Smart™ also has high-performance armrests that move inward and outward and up and down, thus ex Smart™ tending the user’s ergonomic range of motion.