I think it depend on their creator's intention.
if the person who made it consider him/herself an artist and the item is made to be their artistic expression then it is an art.
and then usually they would make something that looks outrageous, hard to understand, make people wonder, and then priced astronomically so nobody would buy it, or if someone do buy it then certainly it won't be a jacket to be worn.
however I doubt that was the intention of jacket makers in general, I think they just want to make well made jackets that is easily understandable by their clients that would love to buy and wear, and tell others about their brand.
if the person who made it consider him/herself an artist and the item is made to be their artistic expression then it is an art.
and then usually they would make something that looks outrageous, hard to understand, make people wonder, and then priced astronomically so nobody would buy it, or if someone do buy it then certainly it won't be a jacket to be worn.
however I doubt that was the intention of jacket makers in general, I think they just want to make well made jackets that is easily understandable by their clients that would love to buy and wear, and tell others about their brand.