Setup, Compatibility & Care
To ensure the longevity of your New Balance 603 trainers, proper care is essential. Always ensure you are selecting the correct UK size for your foot profile, as New Balance sizing is consistent but specific to the arch and width of the 603 series. To clean, remove excess dirt with a soft brush and use a damp cloth with mild soap for surface stains. Avoid submerging the trainers in water or using a washing machine, as this can degrade the structural adhesive and material integrity. Keep them in a cool, dry place away from direct heat sources to prevent material warping.