Wash before the first use – this step cannot be skipped, as it activates the absorptive power of your panties. We recommend a machine run at 40°C, with the spin cycle speed set at a maximum of 1,000 rpm. It’s crucial that you use liquid wool detergent. Always using a laundry net for delicates helps protect the merino wool. Don’t use fabric softener – the panties would no longer be absorbent, and the membrane might moreover become damaged. After use, rinse the panties in cold water. If you want, you can add soap that is suitable for wool (i.e., soap on lanoline or olive oil basis, or Marseille soap). However, we strongly advise against using cosmetic soap, bile soap, or curd soap. Gently knead the panties under your fingers in the crotch area. Don’t rub them! Also, don’t wring them, just squeeze them lightly until they no longer drip. If you follow these steps, the merino layer will remain soft and smooth for many months without pilling. Wash your panties using a 40°C washing program and let them dry inside-out (but not on a radiator or in direct contact with a heated rack). There is no rush; the used panties won’t smell or stain. Simply let them dry, inside-out, after rinsing them by hand. You can then wash them as part of your regular laundry at your convenience. Your panties are again ready to use!