Style 8517 JB Field's Merino Wool Second Skin socks are specifically designed to reduce odour and moisture by keeping your feet dry helping prevent blisters. Typically they are worn under a thermal sock for added comfort. This liner is made from merino wool. It is a lightweight sock that has strategically placed elastic and mesh for breathability and comfort. Available in two sizes and two colours. Why we use merino wool in our socks: Merino wool is a type of wool that comes from a merino sheep. It is the finest wool on the market, making the fabric soft and itch-free. It is also breathable and temperature-regulating, so your feet are not too hot or cold. Merino is one of the best fibres for wicking moisture as it can absorb up to 30% of its weight in moisture and moves it from your skin to the outside of the fabric, where it evaporates. Because it stays dry, odour-causing bacteria cannot grow, making it a naturally antimicrobial fibre. Sizes available: Medium (Women's 5-9 Shoe / Men's 4-8 Shoe) Large (Men's 8-12 Shoe / Women's 10-13 Shoe) 65% Merino Wool, 32% Nylon, 3% Lycra Spandex Merino Wool for exceptional softness, moisture wicking and temperature regulation Ultra-lightweight construction Prevents blisters - wicks away moisture from your feet keeping them dry and blister free! Reduces odour - Helps prevent smelly feet by reducing the growth of bacteria Light Weight: 35 grams Made proudly in Toronto, Canada!