In running, the big toe is vital for balance and propulsion. That's why Sidas developed T-Free technology with athletes like Jonathan Albon, allowing the big toe to move freely for better comfort and stability in road running. Sidas T-Free Run Ankle socks feature trail running innovations: left/right anatomical design, In & Out technology, and Polygiene fibers for cool, dry feet. Strategic protective zones offer impact protection, while ankle support ensures stability. A wide grip band and reflective details enhance visibility. In & Out Construction: Enhanced confort with no cut yarns Big Toe Separation: The big toe is freed for restored comfort and stability Ankle Support: Support band for a secure and stable fit Protective areas: At the ankles, toe box and heel Breathable Ventilated Mesh: Maximum ventilation for dry feet Wide Grip Band: Improves adherence and sock/sole synergy Odour Management: StayFresh Polygiene technology for long-lasting freshness Reflective Band: Increased visib