These little easy-knit booties are made with SPORT yarn (51% combed wool - 49% acrylic) and FILECO yarn (60% acrylic - 18% recycled acrylic - 12% recycled wool - 6% recycled polyamide - 4% various recycled fibres). It is knitted in garter stitch on 4 mm needles. The soles can be hand-washed.