Heavy-duty footwear. Thanks to their heavyweight design, these men's thermal socks from Columbia keep you stepping in comfort during your outdoor adventures.PRODUCT FEATURESHeavyweightHigh bulk yarn for superior warmthThick cushioningFleece linedFIT & SIZINGFits shoe sizes: 6-12FABRIC & CAREAcrylic, nylon, polyester, rubber, spandexMachine washImported