Hand Wash Only ADVANCED MATERIALS:This flat foot support is made of high-grade silicone and has an arched design. By studying the structure of the foot, it has excellent flexibility, elasticity, breathability and durability. Even if worn it all day, it will not feel guilty and comfortable to wear. DESIGN AND FUNCTIONS: A multifunctional correction pads for flat foot, strephexopodia, X-type legs and pigeon toe, soft texture provides cozy, comfortable wear, also balance the sole force NO LIMITS:Wear it at home, work or in the gym. Wear it during day and night. We have created a perfect sleeve that knows no limits Professional athlete, a bank employee, a full-time mom, or anyone in between,can use this product COMFORTABLE & FASHIONABLE :Feel comfort and softness as the compression socks maintain joint stability and posture. The open toe design allows you to wear them with anything shoes, sandals, slippers, boot with insoles, and under any socks. With the anti-odor, moisture wicking and breathable fabric, you stay dry and protected throughout your gym workouts, hiking, cycling, running, office work, and other sports & activities. WASHABLE:It can be washed, if it gets dirty, it can be reused by washing, it is economical and hygienic. After washing with water, air dry in a cool place.