Keen Chukka Boots. Premium oiled leather for professional look. Padded tongue and collar; Removable footbed provides excellent arch support and cradles to the natural contours of the foot. Rubber outsole provides high-traction grip in muddy environments and on rocky surfaces with 4mm multi-directional lugs; Non-marking rubber outsoles leave no trace when walking indoors. These have been worn but have a lot of life left in them.