Product Details Fabric type 53% spandex, 47% nylon. Material care instructions machine wash Origin Imported About this item • Style number: 10039R. • The best base layer! With additional performance features like breathability, wicking and wicking, Thinstincts is the perfect soft and lightweight piece. • Softener: Light and smooth layering piece. • Breathability: the best base layer. With additional performance features such as breathability, wicking and wicking. S477