RDX innovative hyper technology patent pending vest with Flex panels secures the vest and limits its movement during workouts. Patent pending hyper design keep weight away from arms. The hyper Vest is described as "Ideal for multi-plane movement. The 14kg vest is adjustable with removable weights to suit your needs. If you require more or less weight, simply add or remove the weight inserts. The RDX hyper vest has the capacity to distribute weight and no weight is placed uncomfortable on your shoulder blades and with the soft padded backing we guarantee the RDX hyper model to be the most comfortable weight vest you will ever use. The vest is designed with adjustable straps to offer a secure fit and hyper technology to help it stay in place during intense movement. RDX Vest's proprietary wicking fabric that holds the weights comfortably and tightly to your core. These distinct attributes give it a clear edge over the competition. Wearing the RDX Vest allows athletes to bring the weight room to the field. The RDX hyper Weighted Vest is ideal for adding that extra intensity to your workouts. One size fits all.