2XU Flight Compression Mens Black TightsMade from a cotton blend brushed fabric that is soft against the skin and provides optimal thermoregulation, the Flight Compression Tights, promote healthy circulation so you arrive fresh and ready to hit the ground running. Product details GRADUATED COMPRESSION Maintains healthy circulation, minimising swelling and stiffness on long haul flights IMPROVED CIRCULATION Boosted venous return and lymphatic drainage lowers the risk of DVT and swelling