~700 km
Expected lifespan, based on hand-researched wear data for this model.

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The shoe's build quality is described as robust, with a wide, rigid sole and reinforced upper materials. Reviewers from RunRepeat and Doctors of Running note the shoe's substantial construction and high-quality materials, which are likely to withstand significant mileage. There are few reports of premature wear, and the outsole and upper both receive positive marks for longevity.
The Brooks Beast GTS 23 is widely recognized as a maximally cushioned, highly stable motion-control shoe, best suited for runners needing significant support and comfort during daily training and easy mileage. Its substantial weight (approx. 12 oz for men's size 9) and stiff ride make it less suitable for faster-paced efforts like tempo runs or racing, where responsiveness and lightness are prioritized. The plush cushioning and wide, stable platform are praised for long runs, especially for heavier runners or those with severe overpronation, though the shoe's heft can become fatiguing over extended distances. Recovery runs are another strong use case, as the soft heel and stable ride protect tired legs. The shoe is not designed for trail running, lacking the necessary traction and flexibility for off-road or technical terrain. Expert and user consensus consistently highlight its strengths for daily, easy, and recovery runs, while noting its limitations for speedwork, racing, and trails.
Ideal for Best suited for experienced runners or walkers with severe overpronation, flat feet, or larger body frames who prioritize stability and support over speed. Ideal for those logging easy miles, recovery runs, or spending long hours on their feet, and for whom shoe weight is less of a concern than motion control and injury prevention.
The Brooks Beast GTS 23 is a heavy-duty motion control shoe with a wide platform and extremely stiff ride, designed for maximum stability and support for severe overpronators. The upper is improved for comfort and security, and the shoe is best suited for walking or easy mileage rather than speedwork. The fit is especially accommodating for those with wide feet or who need extra support, but may feel bulky or overbuilt for neutral runners.
Sizing: True to size; no need to size up or down compared to standard running shoes. Consistent with previous Brooks Beast models.
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 694 models. At 700 km, the Brooks Beast Gts 23 sits in the upper half of that range.
The Brooks Beast GTS 23 is a top-tier motion control shoe built for runners who demand maximum stability and support. Its combination of a wide base, aggressive GuideRails, and plush cushioning makes it a standout for those with severe overpronation or larger body types, though its substantial weight and stiffness may not suit everyone.
Full specs, fit notes, and reviews on the Brooks Beast Gts 23 wiki page.
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The Brooks Beast Gts 23 lasts about 700 km, based on hand-researched wear data for this model. Your own mileage shifts with body weight, running surface, and how you use the shoe.
Start checking for wear around 420 km (60% of its lifespan). By 560 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 700 km.
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 694 models. At 700 km, the Brooks Beast Gts 23 sits in the upper half of that range.
Often, yes. A pair with under 60% wear (roughly 420 km) still has real training life left. NORMA lists second-rotation running shoes with transparent, verified mileage so you know exactly how much life you're buying.