Hugo Boss Boss X Matteo Berrettini Waffle-fabric T-shirt With Signature-stripe Artwork White 100 . The Hugo Boss x Matteo Berrettini waffle-fabric T-shirt in white is a standout piece, crafted from pure cotton for a breathable and textured feel.Designed in a regular fit, it features a classic crew neck and short sleeves for a timeless silhouette. Signature stripe detailing on the sleeves and a contrast logo at the chest add sporty, modern accents, making it ideal for both casual wear and athletic-inspired looks.