Once you know the method you can wash wool and NOT felt it.

I wash wool kilts and plaids in the bath using hand hot water, very gently patting the water through the fabric, lifting onto a rack, draining and refilling the bath then lowering the item into the water, then using a cup full of white vinegar in the last rinse to counter the alkaline nature of the detergent - I use a cheap hair shampoo, added to the water and mixed in before immersing the wool.

Once you know how to, and how not to you can experiment with partly felting.

Washing and then then rinsing in very hot and then very cold water alternately seems to work with susceptible fabrics.

Anne the Pleater :ootd: