Sockwell Men's Durango Socks Synthetic Made in US Spandex throughout prevents slippage and ensures a snappy fit throughout the day Flat toe seam Y heel shape for better fit Arch support offers a comfort fit and helps keep the sock in place Rib knit welt Socks will be shipped in either Goodhew of Sockwell packaging Flat Toe Seam True Rib Construction for a Improved Fit Y Heel Shape for Better Fit