Fenix ARB-L21-5000U Rechargeable Battery exclude_rewards keeping you performing at the

keeping you performing at the highest level

A resilient combination of breathable Matryx®️ tech and stitched upper construction keeps you protected no matter where the trails take you

Perfect reading of relief

so we suggest moving one size up

Foot-shaped fit enables toes to splay improving balance and providing a stable base of support

Fenix ARB-L21-5000U Rechargeable Battery exclude_rewards keeping you performing at theARB L21 5000U is a high capacity 21700 Li ion USB rechargeable battery built for more power and longer runtimes. This battery has its own USB C charging port for quick easy charging without the need for a separate charger. Additional features include a protection circuit in the anode to help prevent short circuits, over charge discharge and over heating. Pressure relief vents which expel waste gas in the rare case of an internal short circuit