Wash microfiber cloths either by hand or washing machine in warm water(up to 40°C-104°F) with a mild detergent and air dry them. Do not tumble dry. Avoid using fabric softener, bleach or ironing.

MR.SIGA Microfiber Cleaning Cloths, All-Purpose Surface Microfiber Towels, Streak Free Cleaning Rags, Pack of 12, Wheat, Size 32 x 32 cm(12.6 x 12.6 inch)