Plastic breaks, wood chips and needs a fresh coat of paint now and then, with Spring finally here, SIT Urban Design offers a Concrete solution to our Outdoor furniture troubles. 
All their pieces (tables, chairs, planters) are made of concrete so they should last forever…
Sit Urban Design is based in Portugal.
I discovered SIT on Behind the Curtains
On design and the outdoors: Cool in the Pool: Floating Lamps and Live more beautifully …Design Indaba
Some of the pieces are very thin for concrete, especially for the longer spans. It would be interesting to see what’s inside them for reinforcement.