Thorlos Original is made with clinically-tested padding that is uniquely designed and applied to provide maximum cushioning under the ball and heel of your foot for maximum impact and friction (anti-blister) protection and any other pressure/friction point created by your sport-specific activity. Thorlos Brand Promise Guarantee - Your feet will feel better or your money back! Made in the USA. Thorlos: Better feet. Better life. Thorlos clinically-tested padding under the ball and heel provides maximum protection from friction, the primary cause of blisters, and impact protection where needed most Constructed with THOR•LON blended with thermal wool fibers for extra insulation and superior softness, resilience, durability and moisture-wicking for drier, warmer, better feeling feet Cushioned instep and arch for a better fit, more support and less pressure on the feet for a more comfort, and cushioning around toes for extra protection Cushioned instep and arch for a better fit, more support and less pressure on the feet for a more comfort Unique padding specifically engineered for trail running, clinically shown to reduce blisters, pain, pressures and moisture

Thorlo, the originator of the activity-specific sock, is a family-owned company that designs and manufactures sock products for everything from hiking to tennis to hunting. Every pair of Thorlo's socks--from original concept to finished product--is made in North Carolina. Thorlo goes to great lengths to ensure that its manufacturing

using only recycled or recyclable paper in its packaging.

The company provides foot health support through innovative product design. Thorlo recently introduced their "Levels of Protection" system for some of their products to make it easier for the active individual to choose the product that best suits their needs. With an easy 3-2-1 system, consumers can choose the appropriate protection based on the intensity of their activity and their chosen footwear.