Pure Athlete Thin Sport Socks - Perfect for Running, Working Out, Cycling, Tennis - No Blisters, Comfortable Fit Targeted Fit Zones: Designed with special fit zones, the athletic running sport socks fit comfortable to your feet in all places. No-Slip Cuff: The running socks feature a no-slip cuff that prevents the socks from slipping or sliding into your running shoes. Fits Comfortable Into Shoes: The thinly designed sole provides comfort without affecting the fit of your favorite running sneakers. Lightweight and Breathable: Made of ultra-lightweight material, the socks are very breathable and moisture wicking. 100% Satisfaction Guarantee: The sport socks feature our 100% satisfaction guarantee. If not fully satisfied, simply return them within 30 days for a full refund.