Grangers merino washgrangers merino wash is a wash in formulation specifically designed to clean and care for all merino and woollen clothing merino is something of a wonder fabric its excellent at wicking away sweat and moisture and it keeps you warm without being excessively heavy like most wool merino also possesses a natural water repellency and it boasts mild antibacterial properties added together its really no wonder that merino gear and clothing is favoured by outdoor and sport