Brooks Glycerin Flex Trainers - Black/Orange - 6.5

The Brooks Glycerin Flex is a premium cushioned running shoe designed to deliver a smooth, natural...

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Product Information

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The Brooks Glycerin Flex is a premium, high-cushion running shoe tailored for neutral runners who prioritize a balance of plush landings and energetic toe-offs. Utilizing advanced DNA Tuned nitrogen-infused midsole technology, this trainer offers an adaptive ride that mimics natural foot movement. While the shoe excels in comfort and flexibility, runners who require significant motion-control stability for overpronation may find the focus on natural motion less supportive than dedicated stability models.

All features

Age Groupadult
ColourBlack
GenderMale
Shoe Size UK6.5
Accent ColourOrange
Shoe TypeTrainers
SeriesGlycerin Flex
Model Part Number00768603
BrandBrooks

Extended Product Information

FAQs

Is the Brooks Glycerin Flex a stability shoe?

No, it is a neutral trainer designed for runners who do not require extra arch support or motion control features.

What does the DNA Tuned technology do?

It uses nitrogen-infused cells of varying sizes to provide soft cushioning for impact absorption and responsive support for toe-offs.

Can these be used for gym workouts?

While excellent for running, their high level of cushioning makes them less ideal for heavy lifting where a flat, stable base is required.

How often should I replace these trainers?

Generally, running shoes should be replaced every 300 to 500 miles, depending on your running surface and body weight.

Are these shoes breathable?

Yes, the flat-knit upper construction is specifically designed for high breathability and airflow during runs.

Does this shoe fit true to size?

Yes, most runners find the Glycerin series fits true to standard athletic shoe sizing, though you should always allow a thumb's width of space at the toes.

Troubleshooting

Feeling of slipping at the heel

Try using the extra eyelet at the top of the shoe to perform a runner's loop (heel lock lacing) for a more secure fit.

Midsole feeling stiff after cold weather runs

Foam density can be affected by temperature. Bring the shoes inside to warm up to room temperature; they will regain their natural flexibility.

Upper material becoming loose over time

Ensure the laces are retightened before each run to compensate for the natural stretch of the flat-knit fabric.

Pros and Cons

Pros

  • Exceptionally smooth and cushioned ride
  • Highly flexible design that mimics natural stride
  • Lightweight and breathable flat-knit upper
  • Versatile enough for daily training and long distances
  • Responsive energy return during the toe-off phase

Cons

  • Not intended for severe overpronators needing rigid stability
  • The soft cushioning may feel less firm than traditional trainers
  • Flat-knit upper may offer less water resistance than synthetic overlays

Setup, Compatibility & Care

To maximize the life of your Brooks Glycerin Flex, ensure you have the correct fit; as a neutral trainer, it should feel secure at the midfoot without being constricting. Always lace the shoes properly to avoid heel slippage.

Care instructions:

  1. Cleaning: Remove loose dirt with a soft brush after runs. Use a damp cloth with mild soap for deeper stains.
  2. Drying: Air dry at room temperature away from direct heat sources like radiators, which can break down foam cushioning.
  3. Storage: Store in a cool, dry place out of direct sunlight to prevent material degradation.
  4. Rotation: If running daily, consider rotating with another pair of shoes to allow the nitrogen-infused midsole foam to fully decompress between runs.