The Glycerin GTS 21 is intended for runners who desire maximum cushioning and extra support from the GuideRails holistic support system. It has received the APMA Seal of Acceptance. Its predecessor is the Brooks Glycerin GTS 20.
The Glycerin GTS 21 provides enhanced support compared to the Glycerin 20. The innovative GuideRails holistic support system aids your body's natural motion while limiting excessive movement. It is suitable for road running, cross training, the gym, or any other activity you choose.
A stretchable internal bootie envelops your foot and adapts to your stride for a comfortable fit. The newly engineered warp knit upper allows breathability and flexibility while remaining gentle on the foot.
Designed for runners seeking incredibly soft cushioning, the Glycerin GTS 21 offers ultimate softness and exceptional comfort. Its nitrogen-infused DNA LOFT v3 cushioning delivers lightweight, responsive, and durable cushioning.
For a remarkably soft experience while running, the Glycerin GTS 21 features a broad platform that stabilizes the foot and facilitates smooth heel-to-toe transitions.