Ties,regimental,university,college, club.

[gilmore]

...We in the UK wear more ties than you chaps over there,that I understand,but we over here have a more subtle way of demonstrating our,military past,university past, college, or club than you chaps seem to do over there.We don't go in for unit badges,insignia and all that over here, when retired. What do we do?We wear a tie! ...
I understand that regimental,club,university,college ties are not common in the USA, they do exist, I will prove it in a minute!The great thing is that these ties do go well with the kilt for any sort of business,church type function. I am surprised that as the USA are renowned for picking up on good ideas this one has not taken off over there. You ex military men(not sure that the ex military women would be interested) could have your own unit ties. I note that the 101st airborne do, by the way!

...

I suspect that much of Americans' not wearing such ties has to do with the weather. In most of the country it's so much warmer most of the year than in the UK. Ties hold heat, and just aren't as comfortable to wear as an open shirt. In fact there is an ecological debate about energy wasted in cooling office buildings sufficiently for men in suits and ties to feel comfortable, rather than men simply not weating jackets and ties at work. And as more women enter the workplace wearing skirts, dresses, and blouses not usually buttoned at the neck, they often come down on the side of not cooling offices.

Nonetheless, ties with diagonal stripes are aesthetically pleasing, I think, and there was a vogue for them in the 1950's-70's. I guess one would characterize them as pseudo-regimental or old school ties, that didn't represent anything.