
Welcome Offer!
We're officially open!
To celebrate the launch of our store, enjoy 20% off your first order.
Use code: WELCOME20 at checkout.
Unlock the beauty of mathematics with this Fibonacci spiral tee.
Crafted from 100% combed cotton and printed using high-quality DTG technology,
this shirt blends art and science into your everyday look.
Comfortable, breathable, and designed for thinkers, dreamers, and pattern lovers.
Printed on demand – zero waste, maximum style.
• 100% combed ring-spun cotton
• Charcoal Heather and Carbon Grey is 60% cotton and 40% polyester
• Fabric weight: 6.5 oz/yd² (220 g/m²)
• 20 singles
• Regular fit
• Side-seamed construction
• 1 × 1 rib at collar
• Single-needle edge stitch 7/8″
• Blank product sourced from Bangladesh
This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the flammability, lead, cadmium, bisphenols and phthalates level requirements.
In compliance with the General Product Safety Regulation (GPSR), Oak inc. ensures that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact us at alex.oak@company.com or write to us 123 Main Street, Anytown, Country.
Size guide
WIDTH (inches) | LENGTH (inches) | |
S | 18 | 29 ½ |
M | 20 | 30 ½ |
L | 22 | 31 ½ |
XL | 24 | 32 ½ |
2XL | 26 | 33 ½ |
3XL | 28 | 34 ½ |
4XL | 30 | 35 ½ |
WIDTH (cm) | LENGTH (cm) | |
S | 45.7 | 75 |
M | 50.8 | 77.5 |
L | 55.9 | 80 |
XL | 61 | 82.6 |
2XL | 66 | 85 |
3XL | 71.1 | 87.6 |
4XL | 76.2 | 90.2 |
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To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Need to return something? Just let us know.
Each item is designed to blend harmoniously with your living space while adding a unique touch. We aspire to bring balance and enrichment to everyday life.