Feature Breakdown Report

FOR RUNNERS WHO NEED EXTRA SUPPORT: The Brooks Glycerin GTS 21 is designed for runners seeking both supreme cushioning and additional support from our trusted GuideRails holistic support system. This model has earned the APMA Seal of Acceptance, making it a reliable choice for those who prioritize both comfort and support.

PREVIOUSLY KNOWN AS: The Glycerin GTS 21 is the advanced version of the Glycerin 20, offering enhanced support features.

GREAT SUPPORT: The innovative GuideRails holistic support system ensures a natural and controlled motion path. This system supports your body during every run, maintaining stability and reducing excess movement.

IDEAL FOR VARIOUS ACTIVITIES: Perfect for road running, cross training, gym workouts, or any activity that requires durable support and comfort.

PLUSH IMPROVED FIT: The plush internal stretch bootie conforms to your foot, providing a comfortable and adaptable fit. The warp knit upper is breathable, flexible, and soft against your foot, ensuring a snug and accommodating fit.

SUPREME SOFTNESS: Experience ultimate cushioning with our nitrogen-infused DNA LOFT v3 cushioning. This cushioning offers lightweight, responsive, and durable comfort for a soft and cushioned run.

SMOOTH, STABLE TRANSITIONS: The broad platform stabilizes your foot and promotes smooth transitions from heel to toe. This ensures a supremely soft and comfortable in-runner experience.