The new Brooks Glycerin GTS 23 is the stability version of the fan-favorite Brooks Glycerin 23! Glycerin GTS 23 is a premium max-cushion stability shoe that blends ultra-soft DNA Tuned cushioning with Brooks’ GuideRails® system for smooth, supported miles. It’s designed to feel plush and protective underfoot while gently keeping your stride aligned, making it a great option for long runs and everyday training.