Small: Women's 4-6.5, Men's 3-5.5 Medium: Women's 7-10.5, Men's 6-9.5 Large: Women's 10.5+, Men's 10-13 XL: Men's 13.5+ OS1st Unisex Wicked Comfort Socks feature maximum cushion, moisture-wicking, and durability. Their Dry1st® technology quickly eliminates moisture, keeping your feet dry.
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