Amphipod Optic Beam™ 360 Belt - Neon Yellow - 454-11-U Bags - Performance on track: The

- Performance on track: The elasticated waistband and lightweight fabric keeps you comfortable and free to move

The secret to discipline isn't shouting affirmations

The carbon is tuned in the midfoot and heel for a stiff feel where needed for better transition from heel to toe

Speed up the Tempo - The combination of full-length ZoomX foam and a full-length plate optimizes resiliency and energy return while staying lightweight

Updated with a breathable jacquard upper for enhanced airflow

Amphipod Optic Beam™ 360 Belt - Neon Yellow - 454-11-U Bags - Performance on track: TheFully size adjustable, The Optic Beam 360 Belt provides high impact visibility and easily converts to a crossbody illuminating sash. Minimalist featherlight Xinglet Optic technology weighs under 3oz. Ultrabright bioluminescent jellyfish inspired 360 LED illumination technology Fully size adjustable, moisture resistant design Each belt includes green, pink, orange, blue and rainbow bright LED color mode options USB C rechargeable (charging cable