I've found myself really going off silk shirts recently (too clingy and perilous for a haphazard eater like myself), favouring super-soft washed cotton styles that almost verge on preppy instead. Not my thing at all normally, but with low-slung jeans and lots of leather I think it kind of works and is something of a fuss-free uniform I keep turning to at the moment.
I picked up this one by Something Else in the sale from Urban Outfitters a few weeks ago but you can get similar ones from Boy. by Band of Outsiders, MiH Jeans, and The Row.
Seen here with trusty Office boots, Zara jeans and Whistles jacket.