The phrase "fashion moment" refers to a specific point or event in the fashion industry that stands out as particularly significant, impressive, or memorable. Full definition
It fast became one of the most iconic fashion moments of the decade. (harpersbazaar.com)
There's something to be said for being one of the first people down the red carpet, because everyone is fresh and eager and ready for fashion moments. (redcarpet-fashionawards.com)
This, naturally, leads to iconic fashion moments as well. (thistimetomorrow.com)