Smartwool Women's Hiking Medium Crew, Mineral size L(shoe size 10-12.5) 66% Merino Wool, 33% Nylon, 1% Elastane Medium Cushion: Medium cushioning to absorb impact on the trail - Sizing clearly indicated on the sock Flat knit toe seam - Elasticized arch brace Sock Height: Crew Knit in USA of Imported Yarn Style: SW0SW294