EXCLUSIVE AT MRPORTER.COM. In case you missed our recent guide to wearing a rollneck , allow us to summarise – you can wear a slim-fit one like Mr P. ‘s beneath shirts and blazers. It’s been made in Italy from soft merino wool and finished with ottoman stitching. Shown here with Mr P. jacket, Mr P. trousers, Mr P. sneakers, Mr P. socks. Explore the world of Mr P. – – Cobalt-blue merino wool – Ribbed trims – 100% merino wool – Machine wash – Made in Italy- For Men.