Ozzy Bamboo Trainer Socks are produced with fine Bamboo yarn to enable you to get the benefits of natural Bamboo while supported by some constructional comfort add-ons. Material: Natural Bamboo yarn is used as the main element of these socks. Thanks to the nature of the material, we can get benefits such as; Bamboo is naturally anti-bacterial - Keeps your feet odour-free and fresh Bamboo is highly absorbent and powerfully isolating - It keeps your feet dry all the time and makes you feel cooler in summer, and warmer in winter Bamboo is naturally super soft - Making you feel comfortable all day Construction: Invisible through sneakers. Reinforced heel and toe to provide long-lasting experience. No-seam toe to provide extra comfort. Elasticated to fit a wide range of foot sizes Rib welt top to keep stay on foot Size UK 4-7 EUR 37-40 78% Viscose Bamboo, 21% Polyamide, 1% Elastane