Design: Features snowflakes and geometric patterns, also known as Fair Isle or Nordic patterns. Uses: Generally, ski socks are thick and highly insulating, suitable for winter sports and cold weather protection. Brand: Based on the search results, it is highly likely that the product is from the brand Phenix. As seen in the second image, the name is written. Size 100cm is irrelevant; it's about 13-15 (likely referring to shoe size).