Newly updated with lighter cushioning, the men's Adrenaline GTS 23 offers a perfect balance of support and softness that results in a smooth ride for miles at every speed. Lace up and find out for yourself why these men's running shoes have been runner favorites for over twenty years. The Brooks Adrenaline GTS 23 gives you the support you need, producing a soft and easy landing tailored to your stride lasting between 300-500 miles. Providing a premium cushioning experience as well as being a top shoe among Marathon runners. Displaying the versatility of the shoe, perfect for a 1-2k run all the way up to Marathons and Ultras. Medium D-Fit