95% Polyester,5% Spandex. Enter the name and number you want then you will get your own customized socks Offering a skin-friendly and comfortable feel with excellent moisture absorption and breathability.It resists pilling,features strong elasticity that exerts no pressure on the feet. Adopts ribbed designs on the cuff and sole for enhanced anti-slip properties and a secure fit. These elements provide optimal foot protection during exercise. Hand wash or machine wash on gentle cycle. Do not bleach. No ironing needed. Hang to dry.Note: Slight color bleeding may occur during the first wash, which is normal. A great gift for!Suitable for family, friends, and loved ones!