Emergency - battle over school skirt! Can anyone find a LONG jersey/tube skirt in navy?

[GraduallyGoingInsane]

I am in desperate need of your help.

DD1, 2 and 3 go to a school where in winter/spring terms, they wear a school-issued kilt/tartan pleated number. Whilst I'm pretty sure my not so darling DDs rolled up their kilts every day, they never looked that bad.

In summer terms the school appears to lose it's mind, and lets them wear a 'navy blue, straight skirt to be worn at knee length.' In previous years, they've worn a cotton number, which looked ok. Similar to this:

www.johnlewis.com/17335/Product.aspx

DD1 declared before Easter that nobody wears them any more, and she wanted a stretchy one as it would be more comfortable. Yesterday she returned from a shopping trip with her friends with this:

store.americanapparel.co.uk/rsa7303.html

It's not quite as unbearably short on her as it is on the models, but needless to say, the words 'over my dead body' were used.

Now my problem is finding a compromise. So, has anyone seen anything halfway decent that's jersey but longer? It has to be navy blue sadly - I could just about deal with something like this one, but it only comes in black:

www.marksandspencer.com/Marks-and-Spencer-Skirt-Stretch/dp/B003VWY4E2?ie=UTF8&ref=sr_1_4&nodeId=57312031&sr=1-4&qid=1334493634&pf_rd_r=1WBQEQTVPAHZ4DQDTH5C&pf_rd_m=A2BO0OYVBKIQJM&pf_rd_t=101&pf_rd_i=57312031&pf_rd_p=215570647&pf_rd_s=related-items-3

She's 15, very very skinny, and small for her age, so if it's an adult shop it'd need to be in a size 6.

I know DD1 well enough that if I just say no way and make her wear the cotton one from previous years, she'll either change at school or hitch the old one up to ridiculous levels.

Ladies, I have 1 week to solve this dispute! Help!

It's horrible Puffin, isn't it? Don't think I dare google him though! I won't buy from there because of their advertising (and ebcause I don't actually like anything in there. And because it seems to be made for vv small people).

Just about all the adjectives you might apply to the advertising - seedy, inappropriate etc - apply to the man.

aa made damn fine clothes though! (and not just for small people)

Ohh sounds like the H&M one is the winner so far. Especially at that price!

And I'm sure she'll be delighted that it rolls up well! To be honest, if she rolls it up at school, she/the school can deal with it as I've done my part. If it's rolled up, she'll get in trouble, I might get a letter home if she keeps offending, but that's it. If the skirt is too short, the school generally ring home (as has happened when she switched skirts last year, hence my desire to compromise this time!) and as I work where I can't have my phone on, DH gets the call. And he is FAR stricter than me.

Don't worry psammyad, she has the short, single layer ones in a variety of colours for weekend wear, there's no way she'd get that past me! - although actually I think they're longer than the original AA one she brought back.

Thanks for the help ladies...now let's cross our fingers that H&M have it in stock on Thursday, or I'm going to be panicking!