Thin, technical and protective socks designed with a separate section for the big toe, to improve your comfort and stability when trail running. The big toe plays an essential role in balance, alignment and propulsion. We developed T-FreeA(R) technology, with athletes like Jonathan Albon, to allow the big toes move freely and independently. All the expected benefits of trail running have been incorporated into the design of these socks. The left foot / right foot anatomical shape, combined with the In & Out construction (without cut threads) offers more comfort and guarantees a perfect fit for your foot. In addition, reinforcements on the toes, malleolus and heel protect your feet from impacts linked to the terrain. Polygiene fibers and air mesh positioned underfoot keep your feet cool and dry while the ankle support zone provides optimal support for a safe and stable run. The socks also have a wide grip tape for improved grip as well as a reflective tape for good visibility, day and night. Benefits : Stability: T-FreeA(R) technology incorporates a unique compartment for the big toe to restore its biomechanical properties of propulsion, stability and alignment. Maximum protection: Protective zones have been added at the ankles for added comfort. Improved grip : A wide grip strip has been positioned on the socks to improve grip and the sock/insole synergy. Construction : In & Out Construction: No cut wires for more comfortBig toe separation: T-Free technology frees the big toe for comfort and stability.Ankle support: Support band that provides a secure and stable fit.Ankle, toe, heel protection: Reinforcements provide additional impact protectionBreathable mesh: provides maximum breathability and ventilation1 wide grip strip: grip strip for improved grip and sock/sole synergyOdor management: Polygiene StayFresh(TM) technology ensures good odour management and excellent durabilityReflective tape: ensures good visibility even at night