Size 31 insulated/winter boots (20cm)

Selling cool, comfortable, lightweight, warm, waterproof mid-season/warm winter boots, insulated inside, so my son wore them in winter too and his feet stayed 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 of the same with yellow, as they were worn alternately, so both together will suit twins.