The winning socks from the Fuel the Future Contest are here!  Congratulations to Liana Kitchel for creating the winning design.  Great job!  As part of our Fuel the Future promise, a portion of the proceeds from the sale of these socks will go to Liana's school.  Thank you to everyone who participated in the Fuel the Future contest! SizingUnisex Large: 9-12 Mens // 8.5-13.5 WomensUnisex Medium: 4.5-8.5 Mens // 5.5-10 WomensUK Medium: 3.5-7.5 Mens // UK Large: 6-11 MensEurope Medium: 36-41 Mens // Europe Large: Mens 39-46Japan Medium: 22.5-26.5 Mens // Japan Large: 25-30Brazil Medium: 32 - 37 Mens // Brazil Large: 35-39 Features IncludeSeamless ToeY HeelMoisture Wicking SolesLight Gradient CompressionElastic Arch SupportStrategic Plush CushioningMaterials32% Cotton30% Polyester35% Nylon3% LycraCare DetailsTo keep your MERGE4 socks in tip-top shape, we recommend machine washing on a gentle cycle with cold water. Use non-chlorine bleach. For drying, tumble dry on low heat. Please avoid ironing or dry cleaning for best results.