Wooden chairs, finished with a luxuriously quilted seat cushions, not only look pretty, they are fantastically comfortable as well, making them ideal for both formal and informal dining. The only aspect to be very careful about is the fabric covering the pads, as it will need to be washable. Nobody wants to deal with pesky pesto stains or tomato marks, long-term and family homes always seem to encounter spills.
Dining tables and chairs absolutely need to be proportional with each other, as there's no use in having a low table and tall chairs! For a pared back, organic and very zen installation, Japanese designs can be looked to for inspiration, with tatami mats housing a low table and numerous floor-mounted seats. With back supports in place, comfort AND relaxation will be combined to perfection.