MERINO CAREDon't wash too often! Merino will go an amazingly long time without retaining any odour. It's good for both the garment;s life span and the environment to only wash when really necessary!
Cold machine wash
Do not tumble dry
Use delicate pegs and avoid windy conditions if line drying
Cool Iron if required
Do not bleach or use fabric softener
For optimum care (but not essential):
Use wool detergent, cold machine wool cycle or cold hand wash