A simple way to increase the intensity of your workout, the Cortex 10kg weighted vest is comfortable and easy to use. Made from Neoprene and filled with Iron Sand, the vest is flexible and breathable, and the mesh back pocket conveniently stores phones and keys. Bump up the intensity of your routine workouts with the help of Lifespan's Weighted Vest. Our weighted vest comes with 10kgs of weight which will vastly improve strength, stamina via resistance training. Lifespan Weighted Vests are highly adjustable and comes with two adjustable buckles. Warranty: 12 Months Parts replacement warranty