What Our Gearhead(R) Experts Are Saying:"The Glycerin Max 2 makes running feel automatic. The cushioning feels plush but responsive, and the rocker design rolls you forward without thinking about it. It's easily one of the smoothest rides out there."The Glycerin Max 2 Running Shoe is built to keep every step cushioned, protected, and smooth, mile after mile. With nitro-infused DNA TUNED foam, it balances softness and spring by using larger cells in the heel to absorb landings and smaller cells in the forefoot for energized toe-offs. A sculpted GlideRoll(TM) Rocker works seamlessly with the foam, creating an effortless transition that feels natural and fluid. Stacked high with protective cushioning, this shoe reduces impact so legs feel fresher for longer runs. With a new jacquard mesh upper for breathable support and adaptable fit, it's ready to carry you through training blocks, recovery runs, or any road miles in comfort.