Model wearing the black Poseidon of Neptune oversized sea god T-shirt
Additional product view 2 of the black poseidon of neptune oversized drop shoulder tee
Additional product view 3 of the black poseidon of neptune oversized drop shoulder tee
Additional product view 4 of the black poseidon of neptune oversized drop shoulder tee
Additional product view 5 of the black poseidon of neptune oversized drop shoulder tee
Additional product view 6 of the black poseidon of neptune oversized drop shoulder tee

Poseidon Of Neptune - Oversized Tee

Regular price$50.00
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Shipping calculated at checkout.
Color
Size

T-shirt size chart

Garment measurements taken flat. Chest is the width across the garment, not the full circumference.

T-shirt size chart
SizeLengthShoulderChestSleeve length
S27.9520.8722.448.66
M28.7422.0523.629.06
L29.5323.2324.89.45
XL30.3124.4125.989.84
2XL31.125.5927.1710.24

How to measure

  • Length: Measure from where the shoulder seam meets the collar to the hem.
  • Shoulder: Measure from where the shoulder seam meets the sleeve on one side to the other side.
  • Chest: Measure from the stitches below the armpits on one side to the other side.
  • Sleeve length: Measure from where the shoulder seam meets the armhole to the cuff.
  • Free U.S. shipping on orders $100+ after discounts
  • Free U.S. shipping$100+ after discounts
  • Easy returnsQuick exchanges
  • Secure checkoutSafe & encrypted
  • Customer careRapid response

Poseidon, Greek god of the sea, meets Neptune's symbolism of dreams and intuition. An oversized tee inspired by ocean mythology and Pisces.

Explore: Poseidon and Neptune guide · Pisces Collection · Water Element Collection

  • Material: 100% cotton
  • Gender: Unisex
  • Fabric Weight: 190 gsm (5.6 oz)
  • Thickness: Moderate
  • Elasticity: Slight Stretch
  • Breathability: High

Wash inside out. Machine wash at 30°C on a gentle cycle. Air dry recommended. Machine dry air only. No heat. Heat can damage the print. Do not bleach. Avoid ironing directly over the print. Do not dry clean.

Your style. Our original artwork.

Select Omnithreads designs are printed to order on carefully selected garments, bringing our artwork to life especially for you.

How long does order processing take?

Please allow 2–3 business days for order review and processing. Styles printed to order require additional production time before shipment.

Business days are Monday through Friday, excluding holidays.

Where will my order ship from?

Depending on the style, your order may be fulfilled by our production partners in the United States or China. Internationally fulfilled styles require additional transit time. Orders containing items from different locations may arrive in separate packages.

How long does shipping take?

For orders delivered within the United States, U.S.-fulfilled items typically arrive within 2–7 business days after shipment. This transit estimate does not include order processing or any additional production time.

Items fulfilled from China take longer to arrive. Delivery times vary by style, destination, and shipping method. Customs processing and carrier delays can affect delivery. Shipping estimates are not guaranteed delivery dates.

How much does shipping cost?

Free standard U.S. shipping is available on orders of $100 USD or more after discounts, before taxes. For U.S. orders below $100 and international orders, shipping charges are calculated and displayed at checkout based on destination, shipment weight, and available shipping methods.

How can I track my order?

You’ll receive tracking information when each package ships. If your order arrives in separate packages, each shipment will have its own tracking information.

Read our full Shipping Policy for international shipping, customs, and order support.

How long do I have to request a return?

You have 30 days from delivery to request a return. Eligible items must be unworn, unwashed, and in their original condition with tags attached.

For orders delivered in separate packages, each item’s return window begins on its delivery date.

Who pays for return shipping?

Customers are responsible for return shipping. If we provide a return label, its cost will be disclosed before you confirm your return and deducted from your refund.

What if my item is damaged, defective, or incorrect?

If your item arrives damaged, defective, or incorrect, contact support@omnithreads.life so we can make it right. We’ll cover any required return shipping for an approved issue.

How do I start a return?

Contact support@omnithreads.life before sending anything back. Keep your original packaging and receipt or proof of purchase. We’ll provide return instructions once your request is approved.

Read our full Return Policy for eligibility, exceptions, refund timing, and return-condition deductions.

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D
Daniel
Great quality!

Great quality shirts!

Thank you so much! I’m glad the quality stood out to you. I put a lot of care into making every Omnithreads shirt feel premium, comfortable, and built to last, and I truly appreciate your support!

R
Ruperto
These are high quality shirts!!

The quality and print are 🔥!!

Thank you so much! I’m glad the quality and print both stood out to you. I put a lot of care into making sure every Omnithreads piece looks bold, feels premium, and makes an impact, and I truly appreciate your support!

R
Rei
LOVE!

Shirt fit true to size! Great colors! Material is so NICE!! Owner is super helpful and kind!!

Thank you so much! I’m glad the fit, colors, and quality of the material all stood out to you. I also truly appreciate your kind words about the service. Making sure every customer feels valued and leaves with something they love is a huge part of what Omnithreads is all about!

L
Lex
Love

I’ve been seeing these shirts everywhere around dallas & decided to grab one. they’re dope. great quality & the designs are incredibly creative.

Thank you so much! It means a lot hearing that you’ve been seeing Omnithreads around Dallas and decided to grab one for yourself. I’m glad the quality and creativity of the designs lived up to the hype, and I truly appreciate you supporting the brand!

A
Anthony Maietta
FIRE MERCH 🔥🔥

Great quality!! My boy is definitely doing his thing with this!! Definitely a for sure cop with this merch 🔥🔥🔥

Thank you so much! I truly appreciate the love and support. I’ve put a lot into building Omnithreads and making sure every piece brings both quality and originality, so hearing this means a lot. Thank you for recognizing the vision and recommending the brand!

Service You Can Trust

EXPERIENCE IS THE DIFFERENCE

CARE THAT COUNTS
Friendly help. Easy size exchanges.

SHIPPING & DELIVERY
Allow 2–3 business days for order processing, plus production time for printed-to-order styles. Transit time varies by fulfillment location. Free standard U.S. shipping on $100+ after discounts, before taxes.

STYLE WITH PURPOSE
12 ocean plastic bottles removed + 3 trees planted per order. Plant-based, biodegradable packaging.

CONTACT SUPPORT

REVIEWS

"I recently got a t-shirt from Omnithreads and the material is so high quality. It is thick and perfectly oversized! On top of that, the design is so unique and looks as vibrant as it does on the website. I will definitely buy more from this brand now that I feel confident they will deliver exactly what they say."

Jessica Wu

"Super high quality shirts, loved the design and it came super fast! Seems like a good mission. I actually ordered the wrong size by mistake, and they literally replaced free of charge!"

Joel Meredith-Partridge

"This is a great brand of apparel! Poseidon is a great guy and sold this shirt very well! Great material and among one of my favorite workout shirts. Highly recommend!"

Henry Tran

"The Shirt has a great feel to it. Its nice and thick which feels very high quality. Cant wait to wear it. Poseidon is very kind and gave us great customer service. Will buy again!"

Dylan Miranda

"Shirts are a thick, great quality material and super comfortable to wear!"

Natalie Lopez

"Omnithreads has fast shipping and great designs and promotes a positive mission! Great color schemes and comfort style of clothing."

Robert Burton

"I love the designs and seems to have a great thread count based on the comfort!"

Jessica Wolfe

"Very high quality for a reasonable price with fast shipping and beautiful designs"

Sierra Flores

"High quality, dope designs"

Andy D

"Dope fit, one of a kind designs made with high quality material and fast shipping. Definitely recommend"

Jay Gaming