Ok, we admit that we've been into structural lines, textural yet visually-light chairs, and the color red these days. And to our delight, we found two designs that are successfully delivering all the requirements in very elegant and unique ways.
Price-aside (one costs something like 8G), we love Zanuso/Raboni's Super Elastica Chair and Droog's Marcel Wanders' Knotted Chair (red-tinted version is limited to 99 pieces only).
Truly sculptural pieces, both chairs are light-weight and ergonomic, making them irresistable to design lovers/collectors all around the world.