The Compression Buy 2 Get 2 Free Bundle contains 4 pairs of Compression Socks. 

Fabric Content:
Our compression performance socks use 55% Premium Peruvian Baby Alpaca Fiber, 40% Stretch Nylon, 5% Spandex.

Care recommendation:
Wash cold, hang dry - (note: machine washing and drying tests have shown no damage).

Made in USA with imported yarn:
Designed in Wisconsin by outdoor enthusiasts and made in North Carolina.