Nike Spark Unisex Lightweight Run Sock (Crew Length/Reflective) Size:Men US 8-9.5 Side leg pocket

Side leg pocket

Lower leg: 72% NYLON

A buckle on the back of the cap for size adjustment

and offer different ways to adjust the fit and carry poles and accessories

Nike Spark Unisex Lightweight Run Sock (Crew Length/Reflective) Size:Men US 8-9.5 Side leg pocketCUSTOM SUPPORT. BUILT TO RUN. The Nike Spark Socks create a Breaking2 inspired fit that feels almost like going "barefoot". Supportive where it counts, they feature a ventilated pattern to help keep you comfortable with every step. Customized Fit Snug comfort from the toe to the top of the sock helps create an almost "barefoot" feel. A triangular underfoot arch pattern supports your medial and lateral sides, and lets you wear your socks on either