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Japanese Vintage Diplodocus Premium Hoodie

Japanese Vintage Diplodocus Premium Hoodie

Size
Color
4.8 1,800+ reviews
Regular price $69.99
Regular price Sale price $69.99
Sale Sold out
Plants 1 Kelp
100% Cotton Interior
Fast USA Delivery
30-Day Returns

GeoTee Description

Inspired by Earth's geodiversity and biodiversity. Made for those who feel connected to the land, nature, and wild places. Every hoodie plants a tree, giving back to the planet we love.

Premium Hoodie Features

  • Made with 80% combed ring-spun cotton and 20% recycled polyester (fiber content varies by color).
  • Composition varies for heather colors. Grey Heather and Oatmeal Heather: 70% ring-spun cotton, 20% polyester, 10% recycled polyester; Charcoal Heather: 60% ring-spun cotton, 40% polyester.
  • Medium-heavy fabric: 8.25 oz/yd² (280 g/m²).
  • Comfortable regular fit that runs true to size.
  • Soft 3-end fleece with a luxurious hand-feel made from specially spun fibers.
  • 100% cotton exterior, for a high quality print finish
  • Adjustable hood with self-colored woven cord, tipped ends, and metal grommets.
  • Spacious kangaroo pouch pocket to keep your hands warm.
  • Necktape: twill tape covers the neck seam to stabilize the back and prevent stretching.
  • Tear-away label for total comfort.
  • Double-needle topstitch on all seams for durability.
  • Under 5% shrinkage.
  • Embroidery decoration available on left chest or center chest.
  • Made with ethically grown and harvested US cotton.
  • A tree is planted for every hoodie sold.

Environmental Details

  • Unisex sizing for all
  • Responsibly made in WRAP-certified facilities
  • Made with care for people and planet
  • Tree planted for every hoodie

Care Instructions

  • Machine wash cold (max 30°C or 90°F)
  • Do not bleach
  • Tumble dry low heat
  • Iron, steam or dry on low heat
  • Do not dryclean

Free & Easy Returns

We believe in making your shopping experience as smooth and enjoyable as possible. That’s why we offer a Free & Easy Return Policy.

Free & Easy Returns:

You have up to 30 days to decide if your purchase is right for you.

Free Return Shipping:

We cover the cost of return shipping, so you can shop with confidence.

Your satisfaction is our top priority. If you’re not completely happy with your purchase, returning it is simple and stress-free.


Refunds apply to product prices only. Shipping costs are non-refundable.

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Order = Kelp Planted in Canada
1 Kelp
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Our Impact

Fashion that gives back
to the Earth

Every GeoCuriosity order plants kelp in Canada through our partnership with veritree. Tracked, verified, and already in the ground before your shirt ships.

Ethically sourced, printed locally to reduce emissions, and crafted from 100% ring-spun cotton.

Why GeoCuriosity

Built different, by design

Science-Driven Design

Every design is rooted in real natural history. Fossils, ecosystems, and museum collections interpreted by a PhD-level Earth science researcher.

Natural History Research-Led

Ethically Made

Certified facilities, ethically sourced 100% premium cotton, and printing done at the closest location to you, minimizing our carbon footprint with every order.

Sustainable Production

Conservation at Heart

Eco-friendly materials and partnerships that restore ecosystems, protect coastlines, empower communities, and support biodiversity worldwide.

Life on Land Biodiversity

Not all shirts are made equal.

Most shirts are an afterthought. Ours aren't.

100% cotton, ethically made, built to last. Once you wear one, the rest just don't cut it.

  • Designs from the Prehistoric

    Our shirts are designed to provoke thought and curiosity, or just make you laugh.

    Printed on 100% cotton blanks from ethical suppliers and members of the U.S. Cotton Trust Protocol. Our products are designed to help you laugh or spark curiosity

  • Small brand. Serious research.

    We're a tiny team that reads actual Earth Science papers to write jokes about prehistory. Studies show humor aids memory. so maybe you'll actually learn something.

  • 100% cotton. 1 order, 1 kelp

    No synthetics, no excuses.
    Every order helps grow kelp forests, one of the ocean's fastest carbon sinks. Wear it, and the planet gets something too.

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Customer Reviews

Overall rating: 4.8 / 5 from 1841 reviews.

My husband loves this shirt! Super comfy, true to size, and of course, hilarious.

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The shirt took a wee while to make it to NZ but sure was worth the wait. Luffly!

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The shirt arrived on time and fit me well as the description described it Happy with the design and feel if the shirt!!!

Quetzalcoatlus Japanese Vintage T-Shirt

The shirt arrived on time and fit me well as the description described it Happy with the design and feel if the shirt!!!

Late Cretaceous Bonk T-Shirt

The shirt arrived on time and fit me well as the description described it Happy with the design and feel if the shirt!!!

Vintage Mesozoic Retro Jungle T-Shirt

Great shirt, shipped on time with good communication, thank you!

The Devonian Fool T-Shirt

Fits perfectly! My husband really loves it and gets compliments whenever we are out

Remember Who You Are T-Shirt

Beautiful blue background, nice fabric, crisp printing. I wish there was a shorter version for women.

Jungle Roaming Deinonychus T-Shirt

Customer photo review of Vintage Floral Longneck T-shirt

Super happy with the shirt itself, great quality and a good size for me (I'm 6,3" so got a 2xl which is loose but comfy). The print is lovely quality too. Huge shout out to Mary at Geocuriosity, my original shirt was lost in the post by the courier. So they sent me another one and it arrived in 2 days. Could not be happier with the support. Will be buying again from these people!

Vintage Floral Longneck T-shirt

The t-shirt I ordered looks as promised, the quality seems to be good. I only wish it could be washed in warmer temperature than 30C.

Oh No! The Economy! T-shirt

Everything was good! Amazing product and fast shipping! Will be back soon!

Late Cretaceous Bonk T-Shirt

I love the design. That is the true reason why there are no more Dodos.

Dodo UFO Abduction T-Shirt

Poor quality of manufacturing

Oh No! The Economy! T-shirt

Store owner replied: We’re sorry to hear about the poor manufacturing quality, but we’d love to make this right. Please send us a photo of the item you received showing the issue, and we’ll be happy to look into it for you.

Everything You Need to Know

GeoCuriosity FAQs

What makes GeoCuriosity shirts different?


Each shirt is more than just apparel—it’s a story rooted in nature and science. Designed by a PhD researcher in geography who studies the geodiversity of Earth (from oceans and volcanoes to fossils and ancient landscapes), our shirts reflect a love for nature, heritage, and wild places. Every purchase plants a tree and supports sustainable, ethical production.

What is geodiversity—and how does it inspire your designs?


Geodiversity refers to the variety of Earth’s natural features: rocks, landforms, soils, water systems, and the heritage they create—known as geoheritage. From mountain ranges to fossil beds, our designs celebrate this richness and help you connect with the natural history of our planet. Geodiversity is the foundation of Biodiversity, the beauty of our planet would not exist without geodiversity!

What is the fit and quality of your shirts?


Our shirts are made with 100% ring-spun cotton (heather colors include polyester) for a soft, breathable feel that’s built to last. The fabric is lightweight at 4.5 oz/yd² (153 g/m²), offering comfort without sacrificing durability. Featuring a modern unisex fit and a seamless body for smooth wear, each shirt is made in WRAP-certified facilities using OEKO-TEX® certified dyes and ethically grown U.S. cotton.

How do I care for my shirt to keep it looking great?


Wash your shirt inside out on a cool setting with mild detergent, and air dry when possible. Avoid excessive spin cycles and iron inside out on low heat. These small steps will help preserve the vibrant colors and detailed designs—so your shirt stays fresh for every season of curiosity.

Where and how are your products made?

Our t-shirt blanks are manufactured in Nicaragua using ethically sourced cotton and certified production standards.

Printing is done locally at professional facilities closest to your location to reduce shipping emissions. Our shirts are created in:

  • United States
  • Canada
  • Latvia
  • Spain
  • UK
  • Germany
  • Poland
  • Australia

How does GeoCuriosity support conservation and the planet?

At the heart of GeoCuriosity is a deep commitment to conservation and geoheritage—the protection of Earth’s diverse landscapes and the stories they hold. That’s why every shirt sold plants a tree through our partnership with veritree via TheGoodAPI, supporting reforestation efforts around the world.

These tree-planting projects restore ecosystems, enhance biodiversity, protect coastlines, empower local communities, and increase carbon sequestration. From rebuilding mangrove forests in Kenya to upcoming projects in the United States, your purchase helps restore the Earth’s natural balance.

Our impact supports the United Nations Sustainable Development Goals, specifically:

  • #17 Partnerships for the Goals
  • #15 Life on Land
  • #14 Life Below Water
  • #13 Climate Action
  • #12 Responsible Consumption
  • #8 Decent Work and Economic Growth

Your curiosity doesn't just connect you to nature—it helps protect it.