The following FAQ should answer many of the questions that have arisen concerning this change.

Q: Will the new uniform allow the use of ceremonial swords?

A: Yes. Ceremonial swords will continue to be part of the Fourth Degree. When swords are used, gloves should also be used. (see picture above).

Q: How will rank be distinguished?

A: Colored patches will be worn on the beret behind the Fourth Degree emblem as follows:

Dark Blue Supreme Master
Light Blue Vice Supreme Masters
Gold District Masters
White Faithful Navigators
Green District Marshals
Purple Color Corp Commanders

Those not holding office (who formerly wore red capes) will wear berets with no patch.

Q: Will there be discounts offered on the new uniform?

A: Yes. The Order will subsidize the new uniform with a 25 percent discount offered to all members who order the new uniform prior to Sept. 30, 2017.

Q: What if a member just purchased the old regalia?

A: Any member who purchased the old regalia after May 1, 2017, can submit their receipt along with their member number to regaliacredit@kofc.org. Information will then be sent to that member on how to receive a $200 credit toward the new uniform.

Q: Is the Order making money on the new uniform?

A: No, the uniform is being sold at (or sometimes below) our cost.

Q: Was the new uniform field tested prior to its release?

A: Yes. The new uniform was field tested by Fourth Degree members attending the Warriors to Lourdes pilgrimage.

Q: Can the old regalia still be worn?

A: Yes, for a time. While the preference is for the new uniform wherever possible, the old regalia can still be worn until the end of the current fraternal year (June 30, 2018). After that date, only the new uniform should be worn.

Q: Who made this decision?

A: The board of directors made this decision earlier this year after a three year period of testing and discussion. In addition, changing the uniform/regalia was previously discussed with the vice supreme masters at the Supreme Assembly.

Q: Did members have input on this?

A: For years, supreme officers and directors have received comments from members and prospective members that the old regalia was a barrier to membership overall, or to membership in the Fourth Degree.

source:  http://kofc.org/en/news/releases/new-fourth-degree-uniform-faq.html