A weighted vest includes weight attachment points that allow the user to customize the weight distribution when attaching resistance across a body surface. The vest is secured with shoulder straps, side support straps and a chest buckle and can be comfortably worn during any form of physical exercise, freeing the user's hands for other purposes. The vest is reinforced to withstand the stress of the added resistance with the interior of the vest being padded for comfort. Exchangeable rubber disks are removeably fastened to a back panel to modify the resistance in order to achieve the desired exercise intensity. The disks are shaped to fit together to form a continuous, tessellated layer, if desired, and are secured to attachment points on the weight panel with fasteners. The rubber disks are weighted to provide added mass with sufficient flexibility to conform to contours of the user's body.