Designed for feet that don't hurt. High performance runners, cyclists, hikers and fitness walkers who prefer a minimal amount of foot protection. NOT Designed for: Active people with any distracting foot issues or long-time wearers of Thorlos thick or moderate cushioned products. Powered by Thorlo Pads, Experia Merino Wool/Silk has just the right amount of cushioning where it is needed; in the ball and heel. Experia Merino Wool/Silk offers both protection and sheerness for the perfect blend of comfort and performance. The combination of Merino Wool and Silk together provides wicking, softness, and durability.