An impressive feat of engineering, the Mi Chair from Heller is a beautiful, comfortable, modern chair to enjoy indoors and out. This open, sculptural seating provides ergonomic support while holding the sitter in a comfortable position. Made of durable, glossy polyethylene, it has a natural flex and give. Italian designer Giovanni Pagnotta designed Mi to explore the physics of compound curves. “By using curvature, you can optimize strength while minimizing material usage,” he says.