Buff CoolNet™ Crew Socks cycle an upgraded GPS module and

an upgraded GPS module and an enhanced heart rate sensor offer precise accuracy across metrics of speed

Prepare for your next ultramarathon or long-distance training run with the Ultimate Direction Ultra Vest

from marathons and half marathons to Ironman and ultra events

- 2  Hydration Drink (16gm carbs)

Buff CoolNet™ Crew Socks cycle an upgraded GPS module andStep up your game with Smart Mint cooling comfort and odor control, powered by HeiQ. Stay fresh and fast with moisture wicking fibers that keep sweat away, while breathable mesh zones ensure maximum airflow. Designed for performance, these crew height socks feature engineered arch compression for superior stability and flat seams for all day comfort.