Ricosta's girls zip-fastening winter boot is manufactured using high quality leathers that are ecologically and environmentally friendly, free from hazardous preservatives and are chrome vi free. Removable warm lined washable insole. The pu sole is injected directly to the upper ensuring a permanent join. The pu sole consists of 50 percent air making the shoe especially light, flexible and shock-absorbing. This Heart style is a fashionable design, featuring faux fur trim, lambswool lining, warm lined removable insole (washable) and “out dry” waterproof membrane that is also breathable. Ricosta children’s shoes are manufactured according to the wms system (width-measurement-system).