![Yellow Mustard organic cotton T-shirt](http://apneeswimwear.com/cdn/shop/files/7V5A7869.jpg?v=1711040269&width=1533)
![Yellow Mustard organic cotton T-shirt](http://apneeswimwear.com/cdn/shop/files/TSHIRTMOUTARDE.jpg?v=1711040269&width=1200)
![Yellow Mustard organic cotton T-shirt](http://apneeswimwear.com/cdn/shop/files/UNI_NAVY_BLU-PEACOCKBLU_8709.jpg?v=1711040269&width=1201)
Yellow Mustard organic cotton T-shirt
Antoine is 1.87m tall and wears the T-shirt in size M.
If you're between sizes, we advise you to choose the next size up.
![](http://apneeswimwear.com/cdn/shop/files/pictogramme_fiche_produits_12.png?v=1706178393&width=1200)
Details
Manufacturing
Maintenance
Delivery and returns
Choose options
![Yellow Mustard organic cotton T-shirt](http://apneeswimwear.com/cdn/shop/files/7V5A7869.jpg?v=1711040269&width=1533)
![Yellow Mustard organic cotton T-shirt](http://apneeswimwear.com/cdn/shop/files/TSHIRTMOUTARDE.jpg?v=1711040269&width=1200)
![Yellow Mustard organic cotton T-shirt](http://apneeswimwear.com/cdn/shop/files/UNI_NAVY_BLU-PEACOCKBLU_8709.jpg?v=1711040269&width=1201)
We tell you more
![](http://apneeswimwear.com/cdn/shop/files/depositphotos_10212026-stock-photo-close-up-of-ripe-cotton_594754cd-3138-4c03-88f9-c6a3fdebd36f.jpg?v=1705315569&width=1500)
GOTS certified organic cotton
You may be wondering what does this mean?
Our organic cotton, grown with natural compost, reduces water pollution by 98% and greenhouse gas emissions by 94% compared to conventional cotton. In addition, its production requires much less water.
GOTS (Global Organic Textile Standard) certified, it ensures the use of natural fibers and ethical and ecological production.
![](http://apneeswimwear.com/cdn/shop/files/TSHIRT_BLEU_3234_6ee9e72e-4418-477b-85ba-b74898131b1e.jpg?v=1705316643&width=1500)
An essential that lasts over time
Tired of T-shirts that deform and fade after 3 washes?
To ensure that the color and shape hold over time, our cotton jersey is stabilized with a steam treatment then pre-washed in the machine.
The round collar has double stitching to limit its deformation over time.
![](http://apneeswimwear.com/cdn/shop/files/apnee_usine_-6_dc6087c2-96f8-4f23-9e21-aa135830b5c4.jpg?v=1705314274&width=1501)
100% made in Portugal
Why produce in Europe?
This guarantees a short circuit and decent working conditions for workers.
All our products are designed in the north of Portugal, a region recognized for its expertise and know-how, in factories meeting Oeko-Tex® human-ecological standards.