You wouldn't necessarily think that Louisiana U.S. Senator Bill Cassidy and California U.S. Senator Diane Feinstein would have much to team up for when it comes to national events, but they are coming together for a traditional event on June 13.

The two senators have joined together to announce that  day is being set aside as National Seersucker Day.

The two are inviting all Americans to wear a seersucker outfit that day. Cassidy had this to say:

Seersucker is uniquely American - a beloved New Orleans invention. National Seersucker Day is an opportunity to come together as Americans and have fun with a summer staple. I encourage all to participate in this celebration of American culture and look forward to continuing this tradition alongside my colleague Senator Feinstein.

The first seersucker day was held in 1996, and the idea was the vision of former U.S. Senator Trent Lott from Mississippi.

While it wasn't held for two years, 2012 and 2013, Dr. Cassidy brought the seersucker tradition back in 2014, and Senator Dianne Feinstein was on board in the Senate.

Senator Feinstein says she has played a small part in the tradition, but it's been fun,

I remember when Senator Trent Lott started National Seersucker Day in 1996 in an effort to encourage collegiality. I was glad to play a small part then in getting the Senate women invovled. I'm pleased Senator Cassidy has revived this tradition in the Senate, and I look forward to participating. I encourage all our colleagues to join us.

The following is what Cassidy entered into the Congressional Record about the event:

Mr. President, today I rise in recognition of seersucker manufacturers and enthusiasts across the United States. I wish everyone a Happy National Seersucker Day. This uniquely American fashion has a storied history dating back to 1909. The first seersucker suit was designed by Joseph Haspel at his Broad Street facility in New Orleans, LA. Louisiana is proud to have played an important part in introducing the country to seersucker apparel.

This lightweight cotton fabric, known for its signature pucker, has been worn and enjoyed by Americans across the country during the hot summer months. Mr. Haspel said it best: ``Hot is hot, no matter what you do for a living.''

In the 1990s, Seersucker Day was established by Members of this Chamber to honor this unique American fashion. I proudly resumed this tradition in 2014 in the U.S. House of Representatives and continued this tradition in the U.S. Senate. This year, I wish to designate Thursday, June 13, as the sixth annual National Seersucker Day. I encourage everyone to wear seersucker on this day to commemorate this traditionally American clothing.

The seersucker suit was invented in 1908.