Material Composition:76% Cotton, 24% PolyamideCare Instructions:Machine wash up to 40 degrees, gentle cycle, Do not Dry CleanDescription:Seamless at the sides for comfort and an active style.The Uniqlo U collection is the realization of a dedicated and skilled team of international designers based at our Paris Research and Development Center led by Artistic Director Christophe Lemaire.- No side seams. – Lightweight, compact, and perfect for active wear. – A sleeveless T-shirt. – Shoulder seams positioned towards the front for easy movement.