Shift dresses - not clingy material?

[DaftSkunk]

I'm looking for a couple of shift dresses for work, but I don't want them to be clingy and not too pricey - around the £20 mark?

I have a grey shift dress with pockets which I love and got from Peacocks but I can't seem to find anything similar.

Can anyone help please, google is not my friend at the moment.

Thanks.

Sorry they also need to be knee length, I'm 5 7 and I find that some of them are really short so not great for work .

Can anyone help me please?

Bumping again

In the past I bought a really nice one from Tesco (i.e. F&F) and I loved it... but thankfully I am a lot thinner now and it does not fit. Tesco have a sale on at the moment, and I think I saw some shift dresses on the sale rack at around £12.

New look and Dorothy Perkins have some for around that price.