A flexible max-cushion daily trainer that trades some traditional Glycerin comfort for a more natural underfoot feel; most testers find it competent for easy miles, though the flex groove's benefit is subtle and fit compromises may frustrate wider feet.
An innovative max-cushion daily trainer that blends high stack with flexible ground feel, earning a green light from the reviewers.
Best for: Daily training, easy runs, and long runs for runners wanting max cushion with more ground feel.
At GBP 165 the Glycerin Flex's decoupled forefoot gimmick doesn't deliver a distinctive natural feel or the comfort the Glycerin line is known for, and the reviewer can't identify who it's meant for. Applauds Brooks for innovating but cannot recommend this version.
Best for: Unclear target runner; reviewer could not identify who this shoe suits
Not a gimmick: a more neutral, more energetic and lighter take on the Glycerin that nudges it into long-run territory, better as a Glycerin supplement than a replacement.
Best for: Longtime Glycerin fans who want a lighter, more nimble, more uptempo version of the Glycerin for long runs with some faster miles.
A genuinely unique max-cushion trainer with a traditional drop and flexible midsole; didn't jive with the reviewer's supinating gait but may work for more neutral runners seeking flexibility.
Best for: Neutral runners wanting a cushioned but freely flexing trainer that can double for gym work.
Lighter than the Glycerin 23 with a genuinely more natural flex feel, but the difference is subtle and the upper and midfoot fit are worse — hard to justify over the Glycerin 23 unless the flex design really resonates on a try-on.
Best for: Runners who specifically want a more natural, flexible underfoot feel in a plush daily cushion shoe.
A solid, comfortable cushioned daily from Brooks whose flex-groove concept is interesting but subtle on the run; reliable for easy miles and long runs but not especially versatile, exciting, or dramatically different from other Brooks cushion dailies.
Best for: Easy daily miles, long runs and recovery runs for runners who want cushioned protection with a flexible, natural feel rather than an aggressive rocker.
Compared to other road daily trainer in the same lane.
