Factor 12 firm compression, seam-free toes, graduated compression, anti-swelling technology and unlimited robustness. These sound like the specifications to the garments they give astronauts, but it's not that at all! Levante have brought back their Energia range, and they have improved the design so much that it stands as one of the most amazingly well-made products we've ever seen. If you want perfection and something made to be twice the product it needs to be, this is it!