Mimmi Hat is the cutest and warmest hat for your newborn. In the softest merino wool, and with strings to tie a knot. Mimmi comes in grey and pink. Merino wool is a higher quality of wool and known for the extreme softness, superior shine and great breathability. We recommend washing this garment at 30 degrees using a gentle machine cycle and mild detergent soap (especially formulated for wool). To help keep your Merino wool from pilling we recommend washing it inside-out.