Pull on California pop-punk with the Green Day T-Shirt: Green Mask, an officially licensed black cotton tee printed with the band's defiant masked-skull imagery.

Green Day formed in East Bay California in 1987 with Billie Joe Armstrong, Mike Dirnt and Tré Cool, and broke into the mainstream with 1994's Dookie. The band's later American Idiot (2004) and 21st Century Breakdown (2009) cycles leaned hard on red-and-black political-punk imagery, and the Green Mask design slots into that wider visual catalogue.

Available in a black colourway, the shirt prints clean on cotton for daily wear or gig nights.

• Rockoff officially licensed product
• Style: Unisex Short-Sleeve T-Shirt
• Design: Green Mask
• Colour: Black
• Material: Cotton
• Great for: daily wear, gigs, pop-punk collectors

Yes, all of our products are 100% genuine and officially licensed

Please refer to our size chart located above the buy button. It can also be found on the left-hand side of the screen on some devices. We recommend measuring an item you love and then comparing the measurements to the size chart.

Items in stock at our UK shop are dispatched in 1–2 working days. You'll see this under the Add to Bag button when you pick your size.

All other items come from our licensed partner's warehouse and are dispatched in about 5 working days (up to 10 at busy times).

UK delivery is Royal Mail Tracked, usually 2–4 working days after dispatch, and free on UK orders over £40. Delivery costs are shown at checkout.

All items are dispatched from the UK.