Stability. Cushioning. Comfort. The Ultra Trail Sock 2.0 packs three key qualities into a brand new design to get you to the finish line of your next ultra-marathon. Designed to withstand the toughest, roughest terrain of the world’s biggest trail running races, this high-tech sock provides a reinforced, padded terry toe box to protect toes and nails on relentless descents. The terry extends underfoot and up the ankle, with thicker bands to further absorbs impact and pressure from your shoes as you run. Medical-grade compression in the 360° arch support boosts blood flow to delay fatigue, while also preventing the material from twisting and causing blisters. A brand-new X-strap has been specifically developed for increased stability in rocky terrain, firmly wrapping around your ankle for steadfast support. Working as a duo with the arch support, its targeted compression further enhances micro circulation to keep you running pain-free through the night. The sock would not be complete without signature Compressport dots, strategically placed over the malleolus and up the fibula to protect from flying feet and stones. Two rows of dots at the back of the sock provide added support to the sensitive Achilles tendon. Last but not least, the technical mesh over the upper foot and shaft remains lightweight and breathable, quickly wicking away sweat to deliver the comfort and freshness you need on the most demanding races of your life. Take your cues from our pros and choose this crew-length trail running sock to conquer your next mountain challenge.