FOR RUNNERS: The Glycerin GTS 21 offers plenty of cushioning and additional support from the GuideRails holistic support system. It has received the APMA Seal of Acceptance and is the successor to the Glycerin GTS 20.
EXCELLENT SUPPORT: The Glycerin GTS 21 is a more supportive version of the Glycerin 20 with the GuideRails system to minimize excess movement. Suitable for various activities such as road running, cross training, or the gym.
COMFORTABLE FIT: An internal stretch bootie surrounds the foot and adapts to movement, while the warp knit upper ensures breathability and flexibility.
EXTREME COMFORT: The Glycerin GTS 21 offers soft cushioning with nitrogen-infused DNA LOFT v3, providing lightweight, responsive, and durable comfort for runners.
STABLE TRANSITIONS: The broad platform of the Glycerin GTS 21 ensures stable and smooth heel-to-toe transitions for a soft running experience.