A good run is about being — and staying — in the zone, so the right footwear is crucial, starting with your socks. Smartwool's Women’s Run Zero Cushion Mid Crew Socks offers a performance-oriented fit, their patented Virtually Seamless toe, a women's specific fit and breathable mesh zones. Plus, they’re designed to be durable, with the brand's Shred Shield technology as well as Indestructawool™ technology. Best of all, they're made from responsibly sourced Merino wool for comfort and odor resistance.

• Crew height: 5.5 inches.