The double sock construction of the Hilly Twin Skin socklets works to absorbs friction and keep your feet dry. Whilst the inner sock wicks moisture to the surface of the outer sock, the construction of the fabric helps to minimise friction and maintain a smooth run. The inner sock also has anti-microbial qualities to prevent odours caused by bacteria, and keep your feet fresh. The toes on Hilly's socks have a flat, seamless construction to help prevent blisters while you're running. There's also an arch grip section and a soft-touch reinforced heel and toe to give you a better fit.