HYPER MOBILITY DEVELOPMENT. The HMD line of pants was designed to provide maximum freedom of movement using light and durable fabrics. The HMD3 is constructed with 4-way stretch poly-spandex microfiber for flexibility and comfort. These lightweight fabrics have moisture wicking and quick dry properties for ideal comfort in all temperatures and conditions. The ballistic knee fabric is constructed with our ergonomic dome shaped knee design to provide space for your knee pads and increase mobility. The HMD3 also features newly expanded mesh panels and a tapered jogger style cut with elastic cuffs.