The Hilly Marathon Fresh Crew Socks are perfect for all running distances, from a 5k to a marathon. They are designed with breathable, lightweight material and minimum-level cushioning in key areas to provide exceptional comfort. The socks feature an antimicrobial treatment to keep your feet fresh and odor-free, and Lycra Sport fibers ensure a comfortable, lasting fit. Additionally, the flat toe seam reduces irritation and slippage. Features: --Minimum-Level Cushioning - For cushioning in places you most need. --Polygiene StayFresh Finish - Prevents the growth of odour-causing bacteria. --Y-Heel - Improves the fit and reduces slippage. --Vented Upper - Allows cool air to circulate. --Anatomical Cushioning - Located in key area enhances comfort. --LYCRA Sport Fibres - Ensure lasting fit. Polygiene fabric solution gives the socks a permanent and effective odour elimination by inhibiting the growth of bacteria at cell level. Mid to low-level anatomical cushioning in key pressure zones for optimum comfort while keeping weight to a minimum and beathability to the max Upper Foot Venting allows further airflow and moisture management giving ultimate comfort Flat under toe seam construction to eliminate uncomfortable irritation, and Lycra Sport content provides a support hug to the foot to reduce folds on the fabric. High content of polymide used in a tight seem construction gives an exceptionally durable and supportve sock.