M&Z 6 Pack Crew Ultimate Cotton Casual Socks for Men(Plus Size Available) 80%Cotton+17%Polyester+3%Spandex Package Includes: 6 Pairs Socks(Black*3+White*3) 2 sizes available (US Mens shoe Size 6-11 and size 12-17),Cotton/Spandex blend stretches to fit your foot perfectly. Breathable/Non Slip/Comfortable,Elastic waist and silicon heel guarantee they won't slip off your feet Machine Washable,Air Dry,Do Not Bleach FBA Shipment is Available on the item marked as [Fulfilled by Amazon] will take about 1-3 days to arrive