Description
This nudibranch photo T-shirt translates Co’s nudibranch into flowing cream folds, an orange center and fine purple outlines you can wear. The watercolor-style illustration is inspired by Cobi Hay Yacobi’s underwater photograph from Palau, giving a small marine animal the attention of a portrait.
On this page
The animal behind this nudibranch photo T-shirt
Goniobranchus coi belongs to the marine mollusk family Chromodorididae and lives in the tropical western Pacific. Sponges provide its food. If you encounter the older name Chromodoris coi, it refers to this same animal.
A mantle covers the body, bordered by winding dark and pale markings and a purple line along its edge. The gills and rhinophores may be translucent white, pale yellow or brown. Read the species account for Goniobranchus coi for its distribution, diet and identifying details.
Watercolor folds and purple outlines on cotton
Flowing brushwork follows the nudibranch’s pale folds, while fine purple outlines trace their shape. An orange center and ridged projections retain the character of the original photograph. A small painted reef base sits beneath the animal, with open edges around the artwork and a small 2Dive logo below. White offers a light surround for the cream tones, Black contrasts with the pale folds, and Navy sets the warm orange against a cool background.

Co’s nudibranch T-shirt fabric and artwork
The Bella+Canvas 3001 is a unisex jersey T-shirt with short sleeves, a crew neck and a retail fit. White, Black and Navy use 100% Airlume combed and ring-spun cotton. The light, breathable fabric weighs 4.2 oz/yd² (142 g/m²), making the shirt an easy choice for everyday wear.
A ribbed knit collar, tapered shoulders and side seams shape the garment, with a tear-away label at the neck. Use the measurements below to compare it with a shirt you already enjoy wearing. The garment and artwork measurements serve different purposes: one guides fit, while the other tells you how much of the front the design occupies.
On size L, the full print area, including the small 2Dive logo, is approximately 11 x 12.84 in (27.9 x 32.6 cm).
Co’s nudibranch T-shirt sizes and fit
Available sizes run through XS, S, M, L, XL, 2XL, 3XL, 4XL and 5XL. Before choosing, lay a well-fitting T-shirt flat. Take its chest width straight across just below the armholes, then its length from the highest shoulder point to the hem. Compare with the printer’s size guide. Expect a straighter, longer cut than a women’s fitted T-shirt.
| Size | Chest width (flat) | Chest all round | Length | Sleeve |
|---|---|---|---|---|
| XS | 16.5 | 33 | 27 | 8.6 |
| S | 18 | 36 | 28 | 8.9 |
| M | 20 | 40 | 29 | 9.2 |
| L | 22 | 44 | 30 | 9.5 |
| XL | 24 | 48 | 31 | 9.7 |
| 2XL | 26 | 52 | 32 | 10 |
| 3XL | 28 | 56 | 33 | 10.4 |
| 4XL | 30 | 60 | 34 | 10.8 |
| 5XL | 32 | 64 | 35 | 11.2 |
| Size | Chest width (flat) | Chest all round | Length | Sleeve |
|---|---|---|---|---|
| XS | 41.9 | 83.8 | 68.6 | 21.8 |
| S | 45.7 | 91.4 | 71.1 | 22.6 |
| M | 50.8 | 101.6 | 73.7 | 23.4 |
| L | 55.9 | 111.8 | 76.2 | 24.1 |
| XL | 61 | 121.9 | 78.7 | 24.6 |
| 2XL | 66 | 132.1 | 81.3 | 25.4 |
| 3XL | 71.1 | 142.2 | 83.8 | 26.4 |
| 4XL | 76.2 | 152.4 | 86.4 | 27.4 |
| 5XL | 81.3 | 162.6 | 88.9 | 28.4 |
Measurements can vary by up to 1.5 in (3.8 cm). Use the flat-width column for your comparison; chest all round shows the garment’s circumference.

Choose your Co’s nudibranch shirt color
Choose White, Black or Navy for $44.99 USD. The price stays the same from XS through 5XL, so you can choose by fit and the background you prefer around the artwork.

A reef detail for days out
Wear it to meet dive friends, bring it on a boat day or pack it for a beach visit. Paired with everyday jeans or shorts, the nudibranch gives you a small reef subject to look at between trips.
Also as a canvas print
See the Co’s Nudibranch Canvas Print if you would like these folds and coral textures on your wall. Its page shows another way to enjoy the photograph at home.
Explore more of the reef’s patterns
The Chromodoris quadricolor canvas introduces another sea slug and its markings. To develop your eye for marine subjects, browse the marine life identification guide.
Choosing Co’s nudibranch as wearable art
Co’s nudibranch is a good choice if you enjoy seeing a photograph interpreted through another visual style. Compare the original image with the shirt preview: you can follow the animal’s form while noticing where brushwork becomes the language of the design. That relationship is part of the appeal for someone who likes both marine life and illustration.
Wear the shirt with a simple skirt, shorts or jeans and let its drawn edges set the tone. When selecting a Co’s nudibranch gift, think about the recipient’s taste in art as well as their favorite animal. Someone who keeps sketchbooks or collects prints may enjoy the softer treatment of the reef subject.
Co’s nudibranch also makes a useful comparison with the striped sea slug linked on this page. One design centers on flowing folds, while the other offers a different pattern. Open their previews together and choose the visual character you would most like to wear.
Find your next reef subject
Explore invertebrate T-shirts to compare more subjects from Cobi’s collection. Look at Flamingo Tongue Snail Photo T-Shirt and Flamingo Tongue Snail Purple Sea Fan Photo T-Shirt alongside this design, then choose the animal and composition you most want to spend time with.
The photographer behind the image
Cobi Hay Yacobi is a marine nature photographer specializing in underwater photography. His experience spans more than 20 years and over 1,000 dives in the Red Sea and around the world. Read about Cobi and his underwater photography to meet the person behind the collection.
Printing and shipping
The front design is printed to order in the USA using direct-to-garment (DTG) printing. After printing, estimated delivery is 2–5 business days within the USA or 10–30 business days to Canada, Australia and other eligible countries. Express shipping is not available.
Shipping is free to the USA, Canada and Australia. Other countries offered at checkout cost US$12 for the first shirt plus US$8 for each additional item. The total appears before payment. Import duties or taxes may apply outside the USA. The English shop does not ship to the EU, EEA or UK.
Frequently asked questions
How should I wash and care for the shirt?
Machine wash cold up to 30 °C (86 °F). Use non-chlorine bleach only if needed, tumble dry low and iron on medium heat. Do not dry clean.
Can I send the shirt directly as a gift?
Yes. Enter the recipient’s address for delivery to an eligible country. Check their preferred size and color before ordering; a familiar shirt measured flat is a useful reference when choosing a gift.
How do I order and track my shirt?
Select your size, color and quantity, then add the shirt to your basket. Enter your contact and delivery details and review the full total. Available payment methods appear at checkout and are handled by an authorized payment provider. We email confirmation after payment and a tracking number when your shirt ships.
What if my shirt arrives damaged or misprinted?
Damaged or misprinted shirts are replaced. Read the Returns & Refunds policy for details, including returns and cancellations. Keep your order information so you can refer to the purchase.












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