Foot fatigue, coldness, and swelling are often caused by poor circulation, and swelling can also make your legs look thicker. This product promotes blood circulation with its graduated compression design from the calf to the ankle, relieving foot fatigue and swelling, and tightening the leg line for a slimmer appearance. Furthermore, the Photon® fiber provides a warm and comfortable feel, protecting against coldness. Recommended for those who stand for long periods, overuse their legs, or are prone to swelling. We will ship within the same day or the next day after purchase. Please note that there may be wrinkles due to storage or packaging. We inspect the product before shipping, so please rest assured.