The Brooks Glycerin Max is a high-cushion, daily trainer designed for maximum comfort and protection, especially for long runs and recovery days, using a new nitrogen-infused DNA Tuned foam with different cell sizes for soft landings and responsive toe-offs, along with a GlideRoll Rocker for smooth transitions. It features a plush, protective upper and a durable outsole, but its heavier weight and large stack height make it best suited for easy miles rather than fast-paced workouts