Literally obsessed.
So freaking soft.

Spore Diagram lays out mushroom growth and reproduction like a page pulled from a field biologist's notebook, a natural pick for gamers and nature nerds who'd rather wear a science illustration than a logo.
Printed to order on a soft 100% organic ring-spun cotton tee that keeps its shape and holds the print crisp.
GOTS & OCS certified organic cotton, PETA-Approved Vegan, sewn by a Fair Wear Foundation member. We don't print it until you order it — no overstock, no waste — and it ships free, usually 7–11 days in the US. Full sourcing record on our Product Transparency page.
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| Size | Length | Width | Sleeve |
|---|---|---|---|
| S | 27 ⅛" | 19 ½" | 8 ⅜" |
| M | 28 ¾" | 21" | 9 ½" |
| L | 29 ½" | 22 ¼" | 9 ⅝" |
| XL | 30 ¼" | 23 ⅜" | 9 ⅞" |
| 2XL | 31 ⅛" | 25" | 10" |
| Size | Length | Width | Sleeve |
|---|---|---|---|
| S | 69 cm | 49.5 cm | 22.5 cm |
| M | 73 cm | 53.5 cm | 24 cm |
| L | 75 cm | 56.5 cm | 24.5 cm |
| XL | 77 cm | 59.5 cm | 25 cm |
| 2XL | 79 cm | 63.5 cm | 25.5 cm |
Length: Measure from high point of shoulder to bottom hem.
Width: Measure across chest, 1" below armhole, laying flat.
Sleeve: Measure from shoulder seam to sleeve end.
Fabric: 5.3 oz./yd² (180 g/m²) • EU sizing - consider ordering one size up
Literally obsessed.
So freaking soft.
Actually really nice quality
I was a bit worried the vintage spore print would look blurry, but it's super crisp. The organic cotton is honestly so cozy and didn't shrink in the wash.
Huge hit with my boyfriend
I bought this for my partner who is super into mushroom foraging and cozy indie games. He usually hates stiff shirts, but he literally wears this one to sleep because it feels like a broken-in cloud. The diagram design looks really smart and not tacky at all. Shipping took a couple extra days, but it was totally worth the wait.
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Virtually try on our certified-substrate apparel — GOTS organic cotton, GRS recycled polyester, OEKO-TEX Standard 100 — to see the perfect fit before you buy.
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Quick Answer
This is a Stanley/Stella STTU169 100% GOTS-certified organic cotton t-shirt, 5.3 oz/yd² (180 g/m²), unisex fit, printed on demand by Printful with water-based vegan inks. Stanley/Stella holds the GOTS, GRS, OEKO-TEX, and PETA-Approved Vegan certifications across the substrate. 30-day returns, free worldwide shipping.