Natural toe spread | wide and un-restrictive, natural toe box allows toes to splay naturally. Flat toe seam| an almost invisible hand linked toe seam closes the toe boxes creating a comfortable, flat seam that doesn't create excess bulk and cause irritation.Where less becomes more. Less weight, more distance. Less bulk, more comfort. Less shock, more performance. Socks in the trail run range deliver fantastic comfort for those hiking, biking or running on the world's great trails. Fusion technology maximizes the benefits of natural and technical fibers knit in such a way as to create a highly ventilated and perfectly cushioned sock providing advanced fit and comfort. Ultralight low cool max sock for trail running with T2 Micro cushioned impact protection zones. Designed to keep your feet dry and comfortable with maximum ventilation for warmer climates. Sport fit | supportive compression from the cuff through the arch improves proprioception (joint position awareness) around the ankle and mid foot aiding stability and improving balance.T2 anti-shock cushioning| a loop within a loop that offers an additional level of impact protection resulting in all day long comfort. Advanced zonal padding system that provides extra support and comfort to areas of the foot and leg.Coolmax| contains coolmax fiber combined with nylon for a soft, fine touch next to skin. The 4-channel construction draws moisture away from the skin and transports it to the outer surface for maximum dryness and comfort all day.Natural toe spread | wide and un-restrictive, natural toe box allows toes to splay naturally.