FOR: The Glycerin Stealthfit 21 is designed for runners looking for a snug, close-to-foot fit and supreme softness in every step. This Brooks Glycerin Stealthfit 21 has received the APMA Seal of Acceptance. It comes after the Brooks Glycerin Stealthfit 20.
SOFTNESS: Now featuring enhanced nitrogen-infused DNA LOFT v3 cushioning that is lightweight, responsive, and durable with plush comfort.
ADAPTABLE FIT: Updated flat knit upper Stealthfit construction offers a blend of stretch and compression for a closer fit and seamless structure, breathability, and ability to adapt to foot movements.
STABLE TRANSITIONS: The wide platform stabilizes the foot and promotes smooth heel-to-toe transitions for a soft on-the-run experience.
BREATHABILITY: Flat Knit upper provides a seamless fit for maximum breathability to keep your feet cool and comfortable.