The cotton Canvas fabric has not been treated for water repellency. Therefore, if the fabric becomes wet, blot with a dry white or light colored cloth and allow to dry completely.For simple spot cleaning, use a soft cotton cloth slightly dampened with distilled water (sodium-free seltzer water may be substituted) and a mild bar soap, applied in a circular motion. Repeat with distilled water only to ensure no residual soap remains. The fabric should then be allowed to dry completely. Oily spots should first be wiped free of excess liquid. Talcum powder should then be sprinkled on the area and allowed to sit briefly. With a dry toothbrush, gently brush away powder to alleviate the soil.