Affordable style. Six colors. Stackable. 31" H 20.47" W 22" D Energy boost Add a jolt of energy to your space with the Spark Side Chair (2009). Don Chadwick, renowned for his Aeron and Chadwick chairs, has applied his knowledge of ergonomic seating to this affordable, colorful polypropylene chair. Lightweight and easy to clean, Spark is is waterproof and UV-resistant for outdoor use. Legs have integral glides to protect floors. Stackable to six high. Made in U.S.A.