DIADORA HERITAGE Manifesto 2030 Tee – Delft Melange: Organic cotton T-shirt that is part of the Manifesto 2030 collection. The products in this collection convey Diadora signature style and thanks to your messages printed on the fabric, become a manifesto for diadora and tell the story of the sporting attitude that sets us apart. All the items in the Manifesto collection are Made in Italy.