On the grown-up version, the lacework on the sleeves goes up above the elbows, so if we used it on the coat for a small chap that would have gone all the way up his sleeve and over his shoulder. So we had to think quite carefully how to represent that design on the sleeve which is an intricate design and we just shrank it.

We were working it out yesterday how long it took and how many stitches were involved and the sleeves alone for Harry's uniform took one lady one week to make. Between Harry's and the four pageboy uniforms we used 150 meters [164 yards or 492 feet] of Black Russia, which is a type of double-ribbed lace, and we worked out it was about 65,000 stitches and that's just the lacework alone.

WPA Pool

What's the process for fitting pageboys? Is Prince George coming by for fittings?

Yeah, we went to him to Kensington Palace and we did the fittings there along with the other English pageboy. We delivered them on Friday morning to Windsor castle.

I imagine it's a huge deal to be selected to do this, how do you find out?

Well, because we've made Harry's uniforms before and we're in the process of making his uniform for the Royal Marines so we have quite close contact with various people within the palace. So through conversations with them we were able to take care of it quite well.

And keeping in touch and suggesting things, like the little detail on the pageboy uniform. On the shoulder straps on each of the pages, there's gold monogramming on the end and that's the initials of each of the pageboys.

We had discussed with Harry whether they should wear the same rank as him which we all felt was not quite appropriate because they were young and not serving members so Harry came up with the idea of embroidering their initials. That's quite a nice personal touch.

So, did you find out six weeks ago and it's been a mad dash since then? Can you walk me through the process of making Harry's uniform?

With Harry's uniform, because we've made things for him before we've got a good pattern for him. So we were able to do the first fitting, which is a shell based on the actual frock coat itself. Then we had an appointment with him and a fitting and made various adjustments to it. Then we'd take it back to the shop and rip it down again and put it back together, add the lacework to the sleeves and collar then have another fitting with him to make sure the changes were appropriate and everything looked comfortable.

Then we went back again for a final fitting and a couple adjustments then it was delivered and the uniform was there for everyone to see today.

How long does that take from start to finish?

From start to finish, we took about six weeks to do it. So, yes, in our parlance that's a relatively short period of time. And also in that time, the same team of people made the four pageboy uniforms.

There's so much secrecy around this process, what's it like dealing with that?

Yes, there is. I mean, I spoke to a reporter from The Telegraph on Thursday and he asked my opinion on what Harry would be wearing on the day so I sent him off on a bit of a wrong scent. I spoke to him again today and said, "Sorry, I couldn't divulge anything more but that's the nature of it."