Are Max Cushion Shoes Better?
Max-cushion shoes (roughly 38-45mm stack) offer more cushioning material under the foot, which many runners find plush on hard surfaces or over high mileage. They are not universally "better" — some runners find very high stacks feel less connected to the ground, and more cushioning is not established as reducing injury risk.
The one thing to know: A max-cushion classification is a stack-height category (typically ~38-45mm), often paired with a wider platform for stability — it describes cushioning volume, not a proven performance or safety advantage.
What more stack actually changes
More foam under the foot means more material to absorb and disperse the initial impact force of a footstrike, which many runners perceive as a softer, more forgiving ride — particularly noticeable on pavement or after many consecutive miles. The tradeoff some runners notice is reduced proprioceptive "ground feel," since more material sits between the foot and the surface; manufacturers commonly widen the platform at high stacks to offset stability concerns.
Race-legal considerations
Stack height is the total cushioning thickness under the foot, and World Athletics caps it at 40mm for shoes worn in its road running and race walking events (also limiting most competition shoes to one rigid plate). This rule applies to elite/sanctioned competition, not to training or to recreational runners in a local race — but it's the reference point for the 'is this shoe race legal' question people ask about max-stack shoes.
This page describes shoe mechanics, not a health or injury-prevention determination for any individual runner.
Frequently Asked Questions
There's no single official threshold, but the category commonly refers to shoes with a stack height around 38-45mm — near or approaching the World Athletics 40mm road-racing limit — often paired with a widened platform for stability at that height.
Not universally. They offer more cushioning on hard surfaces and can feel plush over long miles, but some runners find very high stacks feel less 'connected' to the ground, and they don't wear out meaningfully slower than lower-stack shoes at similar foam quality.
No injury-prevention claim is supported here. More cushioning changes impact-force perception under the foot; it is not established as reducing overall injury risk, and some runners report reduced ground-feel stability at very high stacks.
Only up to World Athletics' 40mm stack limit for its sanctioned road running and race walking events. Some max-cushion training shoes exceed 40mm and would not be legal for those specific competitions, though they're fine for training and most local races.
Runners logging high weekly mileage, running mostly on hard surfaces like pavement, or simply preferring a plush ride commonly gravitate toward max-cushion models — it's largely a preference and use-case fit, not a universal upgrade.