Sept.Filles Socks Men's Pure Silk Socks Ultrathin Crew Socks Packs of 7 Men's silk socks,moisture absorption, moisture-permeable and anti-odor,suitable for hot days Material:90%silk and 10%elastic fibers,comfortable, durable, breathable Size:US:6.5-9; EU:38-43; 9.45inches in bottom length and 5.91inches in tube length 7 pair for you to wear and change every week Welcome to contact Sept.Filles freely if you got any problems!We are ready for you You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! Colors: Black, Dark Grey, Navy Blue, Light Blue, White. Materials: 95% silky polyester, 10% spandex &amp;lycra Size: US:6-9, recommend small or medium sizes feet. Characteristic: Soft, Breathable, Moisture AbsorptionElasticity and Anti-odor.