The Brooks Beast GTS 23 gives you maximum support and comfort for every walk and run. Whether you are walking your dog, standing on your feet all day, or going for a quick run, the Brooks Beast is all about comfort and stability. The broad base is combined with Brooks’ GuideRails® holistic support system that acts similar to bumpers in a bowling alley, keeping your body in its natural motion path while keeping excess motion in check. The cushioning is soft, durable and adaptable every time you put it on, while the plush upper wraps around your foot for a comfortable fit that will get you excited to move. Features Upper: 3D Fit Print technology gives you a balance of stretch and structure for a secure fit without feeling stiff. The engineered air mesh upper is breathable and plush to provide comfort. Midsole: Soft, nitrogen-infused DNA LOFT v3 cushioning is long-lasting and adaptable to help protect the body from impact. Stability: GuideRails® are Brooks’ innovative technology that helps support your body in its natural motion path while keeping excess movement or overpronation in check. This is combined with a wider base, a linear last and a 3D Fit Print upper to keep you stable and secure. Outsole: Blown rubber outsole with HPR in the heel for added durability.