Brooks Mens Glycerin 21 Running q1_touch QuadFlex 4 Layer Hybrid Face:

QuadFlex 4 Layer Hybrid Face: Initiated in Selkirk Labs with Project 002

Lower to the court and loaded with speed components

More eco-friendly

providing stability

Material Construction: Multifilament / Polyurethane / H2C fibers

Brooks Mens Glycerin 21 Running q1_touch QuadFlex 4 Layer Hybrid Face:Super soft cushioning for supreme comfort. Supreme softness Now with more super soft, nitrogen infused DNA LOFT v3 cushioning that is optimized to be lightweight, responsive, and durable for plush comfort. Improved fit New, engineered warp knit upper is breathable and allows for a flexible, accommodating fit while staying soft against your foot. Smooth, stable transition The broad platform stabilizes your foot and promotes smooth heel to toe