Everything in that train's been worn for hundreds and thousands of years. If you invest in high quality goods, you pay for durability.

[ He did not pay for any of this, though, and everything gets fixed up by magic or by Souji anyways. But when Terry mentions being hot, Minato silently calls for Nekogami, who comes out with a temperature drop of ten degrees and drapes himself over the back of Terry's neck and shoulders to be a portable AC. ]