Brooks Glycerin 23 Trainers - Grey/Green - UK 10

The Glycerin 23 features the updated DNA LOFT v3 cushioning for an even softer and lighter feel, along with a renewed engineered mesh upper for an improved fit and breathability.

Yes, the Glycerin 23 is ideal for marathon training due to its exceptional comfort and cushioning, which helps reduce fatigue over long distances.

These trainers are designed for road running. While they may handle light, packed dirt paths, they are not recommended for technical trails due to their smooth outsole pattern and lack of specific trail features.

You should have about a thumb's width of space between your longest toe and the end of the shoe when standing. The fit should feel secure around the midfoot and heel without any pinching or excessive pressure.

Clean with cold water and mild soap using a soft brush or cloth. Allow them to air dry completely away from heat. Do not machine wash or dry.

The lifespan typically ranges from 300-500 miles (480-800 km), depending on your running style, weight, and the surfaces you run on. The improved outsole durability on the Glycerin 23 aims to extend this range.

While the engineered mesh offers some adaptability, the standard width is designed for a typical foot shape. Brooks often offers specific wide (2E) or extra-wide (4E) options for their models if available, which would be better suited for wider feet.

Ensure you have the correct size. If the shoe feels snug but not painful, the engineered mesh may stretch slightly with wear. Consider using thinner socks.

Cushioning is designed for long-term comfort, but inspect for any debris or compression. Ensure the shoe is kept clean and dry. The cushioning properties are inherent to the midsole material and should not significantly degrade quickly if cared for properly.

While the outsole offers improved durability, it is designed primarily for dry or mildly damp conditions. Exercise caution on very wet or slick surfaces. Ensure the outsole is clean from mud or debris.