Don't let blisters ruin your journey. Walk On is crafted from Hyperfine Merino wool. Produced in the Southern Alps of New Zealand, Walk On prevents blisters, protects areas of irritation, separates toes and cushions feet. The fibers of Walk On will bind to your cotton or woollen socks, keeping it firmly in place. Beautiful, biodegradable and Innovative. We don't think it gets much better than that. This package is suitable for three days worth of adventures.