Side-by-side comparison based on expert reviews and community consensus.
Brooks Adrenaline GTS
Best SupportBrooks Beast
Best for Severe Flat FeetPrice
$130-$150
$140-$165
Summary
The most name-dropped shoe in flat-feet running threads, praised for its GuideRails support system. A reliable daily trainer that works for most flat-footed runners without feeling overly stiff.
The most motion-control shoe in the Brooks lineup, built for runners with severe flat feet who need maximum structure. Heavier than the Adrenaline but offers noticeably more arch support.
Pros
- GuideRails support system limits excess movement without overcorrecting
- Consistently recommended across multiple Reddit flat-feet communities
- Comfortable out of the box for most runners
- Wide range of widths available
- Maximum motion control for severe overpronation
- Preferred over Brooks Adrenaline by users needing more support
- Durable construction holds up over high mileage
- Recommended alongside ASICS Kayano as a top-tier flat-feet option
Cons
- Some users report it feels great in-store but fails at mile 2 on longer runs
- Not universally effective — flat feet vary significantly in structure
- Less cushioning than the Brooks Beast for severe flat feet
- Significantly heavier than most running shoes
- Not suitable for speed work or racing
- Bulkier fit may feel uncomfortable for mild flat feet
Our take
Brooks Adrenaline is the default recommendation for flat feet for a reason — it's forgiving, well-cushioned, and the GuideRails system does real work. Just know that some runners find it breaks down faster than expected past mile 2.
If the Adrenaline isn't cutting it for your flat feet, step up to the Beast — it's the shoe flat-footed runners reach for when they need serious motion control, not just mild stability.
Buy
