Men's Brooks® Glycerin Max 2: Cruise control, but make it bouncy! Your updated Men's Brooks Glycerin Max 2 running shoe delivers plush, nitrogen-infused cushion and an effortless ride that practically runs itself. You'll feel max softness underfoot thanks to DNA TUNED foam - designed to literally be an added pillow as your heel lands and then spring you forward into your next step. The updated upper wraps your foot in breathable comfort, while the GlideRoll Rocker geometry on your Glycerin Max 2 smooths out transitions like a dream.