Warm rubber boots

Kavat warm rubber boots size 30. ~18cm with the warm sock and ~20cm without the warm sock. Insulation - natural wool, removable, washable, replaceable. The boots can also be worn without the sock as regular rubber boots, but then the size is one size larger. The only defect is visible in the picture - the inner fabric is worn through near the heel inside. Wearing with insulation does not affect at all, and it did not bother my child even when worn without insulation.