Brooks Glycerin Flex Trainers - Black - Size 9.5

The Brooks Glycerin Flex trainers are designed for everyday training and offer reliable comfort. While suitable for shorter to moderate long runs, they may not provide the specific cushioning or support required for ultra-marathon distances for all runners.

The Glycerin Flex series is characterized by its integrated flex grooves that promote a more natural foot transition and a smooth ride, specifically tailored for neutral road runners.

Running shoes typically last between 300 to 500 miles. You should consider replacing them when you notice a significant decrease in cushioning, support, or if the outsole shows excessive wear.

These shoes are designed for road running. While they can handle light gravel or well-maintained paths, they lack the aggressive traction and protective features needed for technical trails.

No, the Brooks Glycerin Flex trainers are not waterproof. They are designed with breathable materials for comfort during runs, which means they are not intended to keep your feet dry in wet conditions.

A neutral running shoe is designed for runners who have a normal arch and do not experience significant overpronation (inward rolling of the foot) or supination (outward rolling of the foot).

Ensure you have the correct size and width. Try wearing them with different types of running socks. If the issue persists after a break-in period, they may not be the right fit for your foot shape.

The midsole cushioning may have compressed. This is normal wear and tear. Consider replacing the shoes after 300-500 miles of use, or when you notice a significant decrease in comfort or support.

Check for signs of uneven wear patterns, which might indicate a biomechanical issue. If wear is consistent with mileage, it is likely normal usage. Ensure you are running on appropriate surfaces.