These are some great socks, Shannon's favorite for down at the barn, and they are perfect for boots no matter the time of year given that they don't act like a sponge (like cotton does) in the heat of Virginia summers. Alpaca lets your feet naturally aspirate keeping them comfortable and therefore suppresses odor.

The  sock are machine washable and are 38% alpaca, 37 % acrylic, 25 % nylon.

Sizing for women: Small 5-8, Medium 8-10, Large 10-12 XL - NA

Sizing for men: Small 4-7, Medium 7-9, Large 9-11 XL - 11-14