These are house shoes or waldorf school slippers in azure and dark blue, colors favored by boys. Handmade at Wooppers woolen slippers with the wet felting technique in 100% merino wool; Soft but sturdy, natural and seamless, Wooppers are best choice for your children's feet. These slippers are most hygienic, insulating, breathable and dirt repellent due to wool's inherent properties.