Klim Aggressor Sock 1.0 Riding Socks Castlerock/BlackM Castlerock,Black

• Teton Merino Wool Blended W/ Acrylic, Polyamide Nylon, Lycra For Durability & Comfort (30% Merino Wool, 30% Acrylic, 25% Nylon, 15% Elastane)• Made Of European Sourced Yarns • Reinforced Toe, Heel, Sole• Engineered Terry Loop For Strategic Cushioning And Warmth• Arch & Ankle Support Stretch Bands• Arch & Shin Air Channels For Moisture Control• Patterned Front Mid Ankle Bend For Reduced Bulk• Tubular Cuff For Better Fit & Stretch Recovery• Over-The-Calf Height• Sm = 4-6, Md = 7-9, Lg = 10-12, Xl = 13-15