Just had an email from Lidl and from Thursday (28/11) they are selling base layers again for anyone who is interested.
I bought some last year and reckon they are brilliant.
They are selling trousers for £8.99 and its the same price for tops.
http://www.lidl-info.com/cps/rde/xbc...K_90103_01.jpg
http://www.lidl-info.com/cps/rde/xbc...K_90104_01.jpg
http://www.lidl.co.uk/cps/rde/SID-20...Detail&id=7864