Well, with a black roll neck jumper to rely on, you won't have to worry about trying hard to put together a decent outfit. (theidleman.com)
Can you please give me an idea of sizes as I think we are quite similar... what size is the long grey rolled neck jumper that you are wearing? (figtny.com)
A navy blue roll neck jumper will look particularly good with a pair of grey trousers or jeans. (theidleman.com)