When is a fish not a fish?

Contrary to the name Jellyfish aren't fish (or jelly!) yet related to coral and sea anemones.

Captivating to watch as they 'jet' propel themselves by creating a wall or vortex of water to push against when contracting their bell. Made of 95% water they tend to go with the flow and float.  As such, after storms, they can be washed inshore or onto the beach, so a wet suit and looking at them from a safe distance is advisable to avoid nasty stings. The sea is their home.

Seas the day.

  • FREE delivery on orders of £50 or more

  • Receive a £5 credit on each clothing product when returned for recycling (see label in the garment for details)

  • We give 10% of profits to beach and marine conservation

  • All products are delivered in plastic-free (reusable) packaging 

Size Guide

3-4yrs 5-6yrs 7-8yrs 9-10yrs 11-12yrs
Height 98 112 125 136 147
Chest 60 66 70 75 84


Chest: Measure all around your chest just below your armpits.

Height: Your natural height

If you fall between the sizes, go for the larger of the two.

Product Specification

Certified Organic Cotton t-shirt, 155g/m2. Wash cool and hang dry. GM free. Not tested on animals. Does not contain animal-derived products. Printed in the UK with low-waste printing tech. Made in a renewable energy powered factory audited for a wide range of social and sustainability criteria.

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Delivery to: UK, EU, USA, Can, Aus, NZ
30 day return policy
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Qty available: 759 SKU: 62899288
Joel the Jellyfish Children's Organic Cotton T-shirt

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