TARGETED RUNNERS: The Glycerin GTS 21 is designed for runners who desire maximum cushioning and support from our GuideRails system. This version of the Brooks Glycerin is approved by the APMA. Previous model: Brooks Glycerin GTS 20.
EXCELLENT SUPPORT: The Glycerin GTS 21 provides enhanced support compared to the Glycerin 20. The GuideRails support system prevents excessive movement and supports the body's natural motion. Suitable for road running, cross training, and other activities.
LUXURIOUS FIT: An internal stretch bootie and breathable warp knit upper create a plush, flexible fit that moves with your foot. The fit is comfortable and adaptable to your stride.
SUPREME COMFORT: The Glycerin GTS 21 features nitrogen-infused DNA LOFT v3 cushioning for the ultimate in softness and comfort. The cushioning is lightweight, responsive, and durable.
EFFORTLESS TRANSITIONS: The wide platform ensures stability and smooth transitions from heel to toe for a comfortable running experience.