Smartwool Men’s PhD Outdoor Light Socks An ankle-high powerhouse, the PhD® Outdoor Mini is made for mileage. Great for long summer treks, it combines support, stretch, and recovery. With reinforced high-impact spots and strategic mesh zones. Features: - New 4 Degree Elite Fit System uses two elastics for greater stretch and recovery to keep the sock in place - Patent pending ReliaWool Technology in high impact areas provides the longer lasting protection to keep feet comfortable - Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management - Flat knit durable toe seam for high burst strength - Double layer 1x1 ribbed welt - 3.75” overall height - 69% Merino Wool, 29% Nylon, 2% Elastane - Height: Mini - Cushioning: Light Half-Cushion - Size: Large: US 9 - 11.5/ Extra Large US 12 - 14.5 - Colour: Charcoal