85% Cotton/15% nylon blend. 
One size fits many - women's shoe sizes 5-13, men's shoe sizes 4-11.  
Top (tube) is 12" (30cm) long.  
Very stretchy to accommodate large and wide calves.  
Made in the USA!
 
Long, thick, scrunch-able ribbed top with nice stretch for comfortable wear.  Slimmer fit in the foot, with reinforced heels, and extra cushioning on the bottom and in the toe. White slouch socks are dyeable.
 
Ships in 1-2 business days.