Torsion Air is a contemporary interpretation of the classic Torsion on the Go! By combining the patented torsion flex mechanism with a fresh, mesh back, Torsion Air provides a lighter visual impression as well as breathability and exceptional comfort. Everything about Torsion Air is designed to respond to your needs. Ask it to do just about anything - move, slide, nest and stack. It even offers a variety of tablet surfaces for training applications.