Although it has a classic T-shirt shape, this shirt is not made from jersey, but from a knitted fabric. The lightweight fabric with a grainy feel is made from high-twist cotton yarns. The fine striped pattern is knitted in. The neck, sleeve and body trims are plain-colored.

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.