The Experience Form is all about effortless and supportive miles, with a lightweight midsole, guidance technology, and a 4mm drop. Sail through daily workouts, crush long training runs, and smile through miles with the run club crew in a support shoe that’s ready to move. Lightweight and responsive compression-molded midsole foam encourages efficiency. It’s got GuideRail™ technology, which encourages natural foot placement with gentle guidance for an inherently stable ride. A low 4mm drop complements the shoe’s rocker shape geometry for an efficient toe-off and a smooth, quick roll through your stride. With Altra’s signature FootShape fit, you get a roomy toe box and a secure midfoot, so you can move the way you were designed to. Feel the glide in your stride with the guidance and performance you need. These shoes are in great condition. They were primarily my gym shoes and didn’t get a ton of use. No flaws, defects, or notable signs of wear.