The smooth knit of this shirt is made from pure cotton. An unusual detail is the button placket on this piece, which is otherwise made like a polo shirt: it is buttoned through and features a fine waffle pattern. A patch breast pocket with a turn-down opening can hold small items for everyday use.

Tuscany, one of Europe's great cultural landscapes, is known above all for its vineyards, gardens and olive groves. Maglificio GRP has been operating there since 1973, producing small batches of classic knitwear of exceptional quality - using traditional methods and selected materials. GRP also markets some of its knitwear under the Casa Isaac label, which is inspired by a humanist ideal of cosmopolitanism and brings together different cultures and universal values.