Soft tee on the outside. Hidden performance on the inside. Super soft, sweat-wicking fabric / Mesh behind seams along shoulder for airflow / Cotton on the outside, polyester on the inside / Simple and stylish versatile design / High-performance regular fit T-shirt / Woven flag label with On logo / Light and breat Main FabricCotton 68%Polyester (recycled) 26%Elastane 6%MeshPolyester (recycled) 88%Elastane 12% Weight (grams):156