Size 31 winter/intermediate boots (20cm)

Selling cool, comfortable, light, warm, waterproof mid-season/winter boots, insulated inside, so my son wore them in winter and his feet were warm and dry. Size 31, insole physical length 20cm. Used, with slight signs of wear, but no significant defects, Velcro sticks well. There is also another pair with yellow, as they were worn alternately, so both together will suit twins.