Setup, Compatibility & Care
To ensure your Nike Flex Runner 4 trainers last, follow these care instructions. Because these are slip-on trainers, no setup is required; ensure the correct UK size is selected to prevent heel slippage. For cleaning, remove loose dirt by gently brushing the outsole. If the mesh upper becomes soiled, use a soft cloth with mild, soapy water to spot clean. Avoid machine washing or drying, as high heat can damage the foam cushioning and the structural integrity of the elastic straps. Air dry in a shaded area away from direct sunlight.