With these laces, you can work in mines, drive a locomotive or light a barbecue. Very useful to any self-respecting worker. Effective on foot, by car or while riding in public transportation. Coal black laces are round and thick and well attached.
Sure, solid as the hands of a miner who knows what he is doing, coal black laces, this is the ultimate reference. Colours that will tap into the depths of the Earth to satisfy your feet.
