Extreme sports have little in common with office chairs, but sports did inspire the Vitra Waver Chair. Far from the leather monstrosities found in many offices, Konstantin Grcic's design features bent steel tubes from which the seat is suspended like a paraglider's harness. The backing is made from a single sheet of stretched fabric, and the entire swivel chair is resistant to the elements, so it can be used in front of a desk or a fire pit. [$2,080; vitra.com]