Lock consistent resistance into your daily routines without straining your joints or lugging separate equipment.
- Distributes heavy iron sand evenly across your torso to stabilize your center of gravity and reduce lower back fatigue during rucking or cardio intervals.
- Secures tightly against your frame with dual adjustable buckles and elastic straps for a bounce-proof fit that maintains full arm freedom while you jog or walk.
- Minimizes friction through a contoured SBR lining engineered to wrap comfortably around your shoulders and chest during extended strength sessions.
- Stores your phone in a dedicated compartment while maintaining a compact profile of 27.5 by 25 by 10 centimeters and a total mass of 5.8 kilograms.
