WOMEN'S SHOE TARGET AUDIENCE: The Glycerin GTS 21 is designed for runners who seek extra cushioning and support from our GuideRails holistic support system. This version of the Brooks Glycerin GTS 21 has received the APMA Seal of Acceptance. Previous model: Brooks Glycerin GTS 20.
EXCELLENT SUPPORT: The Glycerin GTS 21 is the enhanced supportive model of the Glycerin 20. The GuideRails holistic support system reduces excess movement and supports your body's natural motion path. Suitable for road running, cross training, and various other activities.
PLUSH CUSTOMIZED FIT: The internal stretch bootie provides a plush sensation and moves with your foot. The newly designed warp knit upper is breathable, flexible, and soft against the foot for a customizable fit.
SUPREME COMFORT: The Glycerin GTS 21 offers the ultimate softness and comfort for runners desiring pillowy cushioning. The nitrogen-infused DNA LOFT v3 cushioning provides lightweight, responsive, and durable plush comfort.
EFFORTLESS, STABLE SHIFTS: The wide platform stabilizes the foot and encourages smooth heel-to-toe transitions for an exceptionally soft running experience.