SparkTeeCo

Fibonacci Sequence Golden Ratio Rule

Name: Fibonacci Sequence Golden Ratio Rule
Brand: SparkTeeCo
SKU: 8066840133808
Availability: InStock

Fibonacci Sequence Golden Ratio Rule

$24.94 USD

~~$33.94 USD~~ $24.94 USD

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Shipping calculated at checkout.

Color: T-Shirt | Maroon

Size: S S M L XL 2XL 3XL 4XL 5XL

Quantity

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Free Replacements

Description

Fibonacci Sequence Golden Ratio Rule - T-Shirt, Hoodie & Sweatshirt

Get the Fibonacci Sequence Golden Ratio Rule design on a Unisex T-Shirt, Hoodie, or Crewneck Sweatshirt. Sizes S-5XL, multiple colors. Printed and shipped from the U.S.A.

Size Chart

Unisex T-Shirt

Size	Length (in/cm)	Bust (in/cm)
S	28 in (71.1 cm)	36 in (91.4 cm)
M	29 in (73.7 cm)	40 in (101.6 cm)
L	30 in (76.2 cm)	44 in (111.8 cm)
XL	31 in (78.7 cm)	48 in (121.9 cm)
2XL	32 in (81.3 cm)	52 in (132.1 cm)
3XL	33 in (83.8 cm)	56 in (142.2 cm)
4XL	34 in (86.4 cm)	60 in (152.4 cm)
5XL	35 in (88.9 cm)	64 in (162.6 cm)

Unisex Sweatshirt / Hoodie

Size	Length (in/cm)	Bust (in/cm)
S	27 in (68.6 cm)	40 in (101.6 cm)
M	28 in (71.1 cm)	44 in (111.8 cm)
L	29 in (73.7 cm)	48 in (121.9 cm)
XL	30 in (76.2 cm)	52 in (132.1 cm)
2XL	31 in (78.7 cm)	56 in (142.2 cm)
3XL	32 in (81.3 cm)	60 in (152.4 cm)
4XL	33 in (83.8 cm)	64 in (152.4 cm)
5XL	34 in (86.4 cm)	68 in (172.7 cm)

Why You'll Love It

Unisex T-Shirt

Made with 100% U.S. cotton (heather & safety colors may contain polyester)
Soft, breathable, durable — perfect for daily wear
Classic fit with ribbed collar & taped shoulders for added comfort
Tear-away label for zero irritation

Unisex Crewneck Sweatshirt

50/50 cotton/polyester blend (select heather colors: 60/40 poly/cotton)
Soft fleece interior for all-day coziness
Classic fit with ribbed cuffs and hem for structure
Enhanced fabric with anti-pilling technology

Unisex Hoodie

50/50 cotton/polyester blend (select heather colors: 60/40 poly/cotton)
Double-lined hood with matching drawcord + large pouch pocket
Warm, comfortable, and made for layering
Heavy Blend fleece for reduced pilling & smoother print quality

Print & Production Details

Printed with advanced DTG or DTF (based on location)
Print area may vary by size; slight color differences may occur
All items made-to-order in the U.S.A.

Shipping Info

Production Time: 1-3 business days
USA Standard: 3-7 days | Rush: 3-5 days
International: 1-2 weeks

Special Requests

Have a special request? We're happy to help!
- Need a custom color or different size not listed?
- Want to create a custom design for your company, team, event, or organization?
- Ordering in bulk (50+ items)? Enjoy exclusive discounts for large quantities.
Please contact us via the email on our Contact page to get started!

Important Notes

All items are made-to-order - please double-check sizing before purchase
We do not accept returns/exchanges for incorrect sizing
Contact us immediately if there's an issue with your item

Thank you for choosing comfort & style. We can't wait to see how you wear it!

Shipping & Returns

Production Time: 2-5 business days (made-to-order)

Economy: 5-10 business days ($6.99)

Standard: 3-7 business days ($8.99)

Express: 2-5 business days ($14.99)

Free Shipping: Orders over $100

International: 10-25 business days ($14.99)

Returns: Defective or damaged items may be returned within 30 days for a free replacement or full refund with free return shipping. Custom printed items cannot be returned for size exchanges.