The piece is made of 100% cotton, a 300g/m² heavyweight double-yarn jersey that gives it a substantial, structured feel while remaining breathable. The cotton body supports the relaxed, loose fit and dropped-shoulder design, making it well suited to casual, everyday wear with a retro racing-inspired look. The turn-down collar and button placket keep the silhouette clean, and the multi-layer reinforced chest print is soft against the skin and built to hold up through repeated washing. The lining is made of other materials.