New Balance AC Runner - Black - Grey - 9.5

The standard fit of the AC Runner is designed for a medium foot width, though the mesh upper does offer some natural stretch.

Yes, the firm durometer foam rails provide enough stability for weightlifting sessions, though they are primarily optimized for running.

Generally, performance trainers should be replaced every 300-500 miles, depending on your running surface and intensity.

No, the trainers feature a breathable mesh upper designed to vent heat, meaning they are not waterproof.

Yes, the internal insoles are removable and can be swapped for custom orthotics if required.

Adjust your lacing pattern or consider an aftermarket insole if you require custom arch support.

Ensure the outsole treads are free from debris like small rocks or mud that can reduce surface contact.

The foam and upper mesh typically require 10-20 miles of light use to fully conform to the shape of your foot.