Great for running, cycling, hiking, and everyday wear, Darn Tough men's No-Show socks are a durable, lightweight alternative to cotton socks. Constructed from a blend of merino wool and nylon for breathability and comfort, each sock features a splash of Lycra for just the right amount of stretch. Naturally antimicrobial, the socks repel odor causing bacteria by pulling moisture away from the skin and out of the sock. The seamless construction and fine-gauge knitting creates a streamlined fit that won't slip, bunch, or blister. The ultra-light socks are great for racing or light training days, while the light socks have more cushion for longer runs .