The Glycerin Stealthfit 21 is a women's shoe with a snug, close-to-foot fit and supreme softness. It allows runners to enjoy a comfortable ride and run without distractions. This shoe has received the APMA Seal of Acceptance. It is the successor to the Brooks Glycerin Stealthfit 20.
The shoe now has improved cushioning with nitrogen-infused DNA LOFT v3 that is lightweight, responsive, and durable, providing supreme softness.
The updated flat knit upper Stealthfit construction offers a secure, adaptable fit by combining stretch and compression. It provides seamless structure, breathability, and adapts to the foot's movements.
The shoe's broad platform promotes stable transitions and smooth heel-to-toe movement, creating a supremely soft running experience.
The Flat Knit upper ensures a seamless fit that allows maximum breathability, keeping the feet comfortably cool.