Slip on the Billie Eilish T-Shirt: Therefore I Am in neutral soft-style cotton — officially licensed Billie Eilish merchandise carrying the track-title lettering across a back-print layout.

Therefore I Am ran as a single from Billie's second album cycle, and this design mirrors the punchy, off-kilter register the track title kicks around. The back-print treatment gives the wordmark room to sit large without crowding the front.

Available in a neutral tone on soft-style cotton, unisex short-sleeve cut with a crew neck. Reads well layered under a hoodie or worn solo, with the print catching the light on the back for a straight fit that suits both catalogue collectors and casual fans.

• Rockoff officially licensed product
• Style: Unisex Short-Sleeve T-Shirt
• Design: Therefore I Am
• Design Features: Back Print
• Colour: Neutral
• Material: soft-style cotton
• Great for: pop tee rotation, Billie Eilish fan merch, back-print collectors, gig-day layering

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.

Order processing times: Most orders are processed within 5 working days, however, during busy times it could take up to 10 working days. Once the order has been processed it will be dispatched for shipping.

How long does shipping take?

In stock items will be dispatched as soon as it has been processed. 

Please note, we do not stock all 8000+ items, and have to order from our licensed partner at times which could cause a slight delay. We will however, get the item to you as quickly as possible. Once the item has been received we will dispatch it within 2 days.

Will I need to pay customs fees?
Customers are responsible for any customs fees incurred (only applicable when ordering internationally). All items are dispatched from the UK.