Perfectly Reasonable — Golden Ratio | Vintage Math Tee

$29.50 USD

Sale Sold out

Shipping calculated at checkout.

Color Athletic Heather Ash Natural White

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

Size guide & measurements

Garment measured flat, in inches. Sizes run true; if you are between sizes or want a relaxed fit, size up.

Unisex T-Shirt (Bella+Canvas 3001, Comfort Colors 1717)

Size	Chest (in)	Length (in)
S	18	28
M	20	29
L	22	30
XL	24	31
2XL	26	32
3XL	28	33
4XL	30	34
5XL	32	35

Tanks and Crops

Size	Chest (in)	Length (in)
S	20	27
M	22	28
L	24	29
XL	26	30
2XL	28	31
3XL	30	32

Full chart including hoodies and sweatshirts: size guide. All sales are final, so please check the measurements before ordering.

Phi shows up in shells, sunflower seeds, and about four hundred design articles that overstate the case. The spiral is still beautiful and the math is still real, which is enough. Vintage math print for the person who runs the numbers before agreeing with the poster.

Soft ringspun cotton, unisex fit, true to size. Go up one if you like a little extra room through the body. Comes in Athletic Heather, Ash, Natural and White.

Printed after you order, which is why nothing sits in a warehouse. Out the door in 3 to 5 business days. The DTG ink soaks in and stays soft through the wash. Wash cold, inside out, tumble dry low.

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Perfectly Reasonable — Golden Ratio | Vintage Math Tee Natural flat lay

Made for the people who catch it

Printed when you order, so nothing sits in a warehouse guessing at your taste. Soft cotton, true to size, and a print that stays put.

Perfectly Reasonable — Golden Ratio | Vintage Math Tee

$29.50 and up

Free shipping on every US order
Buy 2 tees, get 1 free
Printed when you order, ships in 3 to 5 days

Free shipping on every US order. Buy 2 tees, get 1 free.