Even with a small armrest for added ease, this Lillium variation still slides easily underneath the table. Design studio Bjarke Ingels Group took the idea of a slatted outdoor chair that lets rainwater drain off from seeing an old disassembled schnapps barrel. The chair's X-shaped metal frame provides stability while also allowing for a bit of comfortable "give" when seated. Fashioned in solid FSC-certified teak and stainless steel to stand up to the elements, the untreated wood seating develops a prized grey patina over time.