Dansko Oiled Leather

leather
whip with a leather strap
an animal skin made smooth and flexible by removing the hair and then tanning
A thing made of leather, in particular
Leather is a durable and flexible material created via the tanning of putrescible animal rawhide and skin, primarily cattlehide. It can be produced through different manufacturing processes, ranging from cottage industry to heavy industry.
A material made from the skin of an animal by tanning or a similar process
A piece of leather as a polishing cloth

oiled
Lubricate or coat (something) with oil
Impregnate or treat (something) with oil
(Oiling (leather processing)) Oiling is a process whereby leather is hand coated (usually by brush or tampon) with either a raw (un-emulsified) oil or a combination of raw oil, blended with emulsified oils and a penetrating aid.
treated with oil; "oiled country roads"; "an oiled walnut table"
Bitumen is a mixture of organic liquids that are highly viscous, black, sticky, entirely soluble in carbon disulfide, and composed primarily of highly condensed polycyclic aromatic hydrocarbons.