2-in-1 thermo rubber boots in natural rubber for your child.- Removable sock lining- Reinforced toe for extra protection- Signature printedThe warm removable lining is made from 30% wool and 70% recycled polyester. The boots are ideal for winter with the sock lining in place. As autumn approaches, you can extend the life of the boots by removing the lining, making them one size larger and suitable for a new season.The boots fit true to size. However, when used with the extra sock lining, it is recommended to size up. The boots come with an additional latex insole covered with recycled polyester, which can be used once the sock lining is removed.Recommended growth allowance: 11.5 cm---Outer material: Natural rubberLining: 30% Wool, 70% Recycled polyester