Maintaining the pristine condition of New Balance sneakers involves careful cleaning using the right tools: a soft brush or toothbrush, mild detergent or shoe cleaner, a clean sponge or cloth, warm water, absorbent paper towels, and optionally, shoe deodorizer. Cleaning is a step-by-step process beginning with removing loose dirt and debris, followed by the application of a prepared cleaning solution, mixing warm water and mild detergent.