SOS Socks standard design is anything but standard. They use core-spun
Coolmax fabric which is the best of both worlds; unsurpassed moisture management and Lycra sport stability. Their specific knitting machines place the Coolmax fabric on the inside of the socks where it controls moisture from the foot; while the 3-ply nylon is used on the outside of the sock for strength and durability. The core-spun yarn is the most efficient way of knitting Lycra fabric into the foot of the sock and still allow both the Coolmax fabric and nylon to be sandwiched together.
Made in the USA
Cuff Height: 2.5 Inches
Material: core-spun COOLMAX fabric
Sole Seam - Rosso extra smooth looped toe seam (incredibly comfortable & durable)
Air-Sole Mesh for maximum breathablitly