Today I am wearing a cotton blue-check 3-button notch-lapel unstructured and unlined sports jacket, a blue/white striped cotton shirt with French cuffs, a red/blue horizontal striped silk-knit tie, a pair of black monk-strap shoes and a vintage gold-plated Omega Seamaster black-dial watch in a black leather strap. I am not wearing a pocket square today.
It seems to me that a light blue shirt (not a stripe) would have been more appropriate with today’s ensemble. The stripes of the shirt and checks of the Sports-jacket appear to be clashing. This could an example of how not mix checks and stripes.
Another minor thing is that today I am wearing a pair of silk-knot cufflinks.