The 2009 Brooks Adrenaline GTS 9 running shoe is on sale now for $68.95. The Brooks Adrenaline GTS 9 is designed to unleash endorphins in mild to moderate overpronators. So what’s different vs. prior versions of the shoe? * Sustainability: The Adrenaline GTS 9 becomes more environmentally responsible with the addition of our biodegradable midsole, BioMoGo, and recycled shoe laces. * Midfoot Wrap: The placement of the non-mesh overlays were altered for even better midfoot wrap. * Engineered Heel Geometry: The “crumple zone configuration” was altered (the lateral/outsole heel where the foot strikes the ground — or, the “colored heel” portion of the shoe) through a separate mold piece that helps to better control motion at impact. What’s the Same? * Stability: The stability of the Adrenaline GTS 9 has been maintained through consistent placement and geometry of the PDRB®. * Snug Forefoot Capture: Once again, the Adrenaline GTS 9 delivers on this desirable feature. * Outsole Pattern Configuration: The flex grooves from the decoupled heel outsole pattern all the way through the forefoot are anatomically designed for the moderately pronating foot. Optimal support and integrity are offered while guiding the foot to an effortless toe off. Width Sizing: Narrow = B, Medium = D, Wide = 2E, Extra Wide = 4E