Men's Brooks® Adrenaline GTS 23 :: Light as air! The latest edition of a beloved running shoe, your Men's Brooks Adrenaline GTS 23 brings fresh vibes to all the right places. What's new? Not just pops of bold color in the graphic and outsole. Look closely at the midsole - with DNA LOFT v2, you'll barely feel this shoe beneath your feet while still experiencing your softest, lightest, and most stable ride yet. Crafted using recycled materials equivalent to 9 water bottles, you can be sure your Adrenaline GTS 23 is doing more than helping build up speed and endurance.