Setup, Compatibility & Care
To ensure your New Balance Numeric 340s last, it is recommended to apply a suede-specific water repellent spray before initial use. For cleaning, avoid submerging the shoes in water; instead, use a soft-bristled brush to remove dry dirt or mud from the suede surface. If the shoes become wet, allow them to air dry at room temperature away from direct heat sources, which can cause the material to warp or crack. Because these are standard trainers, they are compatible with most aftermarket insoles if you require additional arch support. Ensure you check the sizing guide carefully, as suede material may exhibit slight natural give over the first few weeks of consistent use.