To keep your Sumba Dining Chair in excellent condition, you should wash the aluminium frame with a soft cloth dipped in warm, soapy water to remove any accumulated desert dust or salt buildup. Avoid using abrasive cleaning agents or metal brushes, as these can compromise the protective powder-coated finish. For the fabric cushions, simply brush off any loose grit regularly and spot-clean with a mild detergent solution if needed, always ensuring the cushions are left to air-dry completely in a shaded, well-ventilated location.