Compression socks can help reduce swelling, fatigue and discomfort during long flights. They work by applying pressure to the legs which increases circulation and helps bring fresh blood to the lower extremities. This can improve comfort levels, reduce leg cramps and help prevent deep vein
thrombosis (DVT), a potentially dangerous condition in which a blood clot forms in the veins of your legs. Compressing socks are also beneficial for those who have varicose veins or other circulatory issues that may be aggravated by sitting for extended periods of time.