Stone Island Shadow Project, designed in collaboration with ultra-technical innovators Acronym, moves the brand's novel designs on even further, to create - in their own words - "tools to help man relate to the surrounding environment". Every piece falls under one of five function categories that form layers of protection for the wearer. This premium cotton piece revamps the classic Henley collar tee, adding tonal taffeta panelling to the rear yoke as well as the two button placket.