The "Arch Support for the Sole" is designed with an arch shape based on research of foot structure, using elastic EBA material to lift the muscles of the sole and apply direct, gentle pressure to the arch of the foot. This helps to balance the entire foot, correct posture while walking, and reduce stress on the knees and lower back. 【Improvement of Foot Problems】This flat foot support addresses foot problems such as: ● Tired feet when walking due to flat feet ● Loss of arch support ● Plantar fasciitis ● Flat feet, knock knees, or bowlegs ● Tired soles from standing work ● Difficulty standing for long periods. Just one set creates an arch in the sole, gently secures it to the bottom of the foot, and cushions the impact of walking. It softly supports unbearable foot fatigue and discomfort, providing thorough care for all kinds of foot problems. 【Excellent Breathability】The thin, high-quality nylon material absorbs sweat and is breathable, preventing foot odor. Its thin design allows for comfortable walking in shoes. It can be worn directly on bare feet for daily use, yoga, or jogging, and can also be worn with socks, stockings, or shoes. 【Easy to Attach】 The L and R markings on the back make it easy to distinguish between left and right. It can be worn directly on bare feet without discomfort. Since it's the type that you wear on your own feet, there's no need to switch it out depending on the shoes you wear that day. It can be used indoors with slippers or barefoot. It's useful in various situations such as walking, commuting to work or school, standing work, housework like cleaning and cooking, yoga, running, sports, and mountain climbing. 【Washable and Hygienic】 The foot support absorbs and releases sweat and moisture, keeping your soles comfortable. It can also be washed after use, making it easy to care for and keep clean. Hand washing is recommended. If using a washing machine, put it in a laundry net and wash on a delicate cycle.