New Balance FuelCell SuperComp Pacerv2 Trainers - Green/White - UK 9.5

While they can be used for marathon training, they are primarily optimized for speed and racing. For the bulk of marathon training, trainers with more cushioning and durability might be preferable. Use these for faster workouts and race day.

FuelCell technology is New Balance's proprietary foam compound that provides a high level of energy return, offering a propulsive and responsive feel underfoot.

Ensure there is a thumb's width of space between your longest toe and the end of the shoe when standing. The heel should feel secure without excessive slipping, and the midfoot should be snug but not constricting.

These shoes are specifically designed for road running. While they can handle some light cross-training, their specialized construction is not ideal for activities requiring lateral support or high impact absorption like weightlifting or court sports.

For racing and faster workouts, expect optimal performance for approximately 200-300 miles. If used for daily training, the lifespan may be shorter due to increased wear on the lightweight components.

No, these trainers are not waterproof. They are designed with breathable materials for ventilation, which means they will allow water to pass through if submerged.

Adjust the lacing pattern. Try different lacing techniques to find a secure but comfortable fit. Ensure you are wearing appropriate running socks.

The FuelCell foam may lose some of its properties with extensive use, especially if used for daily training. Consider using these shoes primarily for racing and tempo runs to preserve their performance.

These shoes are designed for road racing and may have limited grip on very wet or slick surfaces. Exercise caution and reduce speed if conditions are hazardous.