a few of us got these a few years back, they are very good
http://www.lidl.co.uk/cps/rde/xchg/lidl_uk/hs.xsl/index_26452.htm
save on heating and just wear them around the house
http://www.lidl.co.uk/cps/rde/xchg/lidl_uk/hs.xsl/index_26452.htm
save on heating and just wear them around the house