80% cotton 20% spandex CONSTELLATION DESIGN:The constellation design silicone gel grips on the bottom,extend far enough across the entire bottom of the socks .They keep your feet firmly planted on your mat. SELECTED MATERIAL:Made from natural combed cotton to help absorb sweat,leaves an invisible protective barrier against bacteria.?keep you cool and dry during workouts and activities. SIZE and WASH INSTRUCTIONS:Best elasticity can be suitable for most women’s feet(US Size5~10).Please wash these yoga socks by hand. Machine wash in cold water and air dry is available. DO NOT dry clean, iron, bleach. GREAT GIFT CHOICE :Our constellation yoga socks make the perfect present for Home/Hospital Use,Pregnant Women and Older People,you can choose for your girlfriend, daughter, wife,mom,as birthdays, Christmas gift. NOTES: If you have some issues about our yoga socks,please contact us anytime we will help you solve your problem as soon as possible, so click the yellow Add to Cart button and order now! Time may tell, who care you most!