Smartwool PhD Run Light Elite Micro Running Sock – Women's Color:Black 20mm stack height with a

20mm stack height with a 6mm heel-to-toe drop keeps you in a natural position while still delivering serious underfoot protection

Cowl neck doubles as a neck gaiter-style draft shield

Patagonia's H2No 3-layer construction keeps water out while moving sweat vapor through

ECCO PHORENETM footbed is designed for comfortable all-day wear and energy return with every step

Quality construction handles daily wear and active pursuits

Smartwool PhD Run Light Elite Micro Running Sock – Women's Color:Black 20mm stack height with aBuilt for runners who want merino performance without extra bulk, the PhD Run Light Elite Micro is our pick for daily training and race days in the heat. Targeted cushioning at the ball and heel absorbs impact where it counts, while mesh ventilation zones move moisture out fast. The 4 Degree Elite Fit System keeps everything locked in place, no bunching, no slipping. Targeted Light Elite cushioning at the ball and heel for impact protection without