Praised for a perfect fit on the heel.   The lacets ensure the booties stay on tiny babyfeet. Available in 2 sizes: 0-9   months: original booties: 9,5cm lenghth - 6 cm width 9-15 months: 10,5 cm length-6,5 cm width Material: 100 % extra fine Italian merinowool (oeko-tex,mulesing free). It's not necessary to wash mer