Wilko travel tights provide firm comfortable support for your feet and legs during flights and long journeys one of the biggest causes of flight related dvt deep vein thrombosis is poor circulation and fluid build up from being inactive for a long period of time using graduated compression these travel tights can help improve circulation and make for a more comfortable journey by reducing swelling and relieving tired aching legsmaterials body 81 nylon and 19 elastene sole 88 nylon