New without tags this was a gift so I am unsure of the authenticity. however it looks quite impressive and is of very good quality. see photos
The Stone Island Black Cotton T-Shirt in size Large is a stylish and versatile wardrobe essential for men. Made from high-quality cotton jersey fabric, this solid black shirt features a classic crew neck and short sleeves for a comfortable regular fit. The shirt is adorned with the iconic Stone Island Compass patch and logo accents, adding a touch of urban edge to the design. Suitable for all seasons.