Keep Closed At Sea Maritime T-Shirt

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The Keep Closed At Sea Maritime T-Shirt is a comfortable and stylish way to show your love for the ocean and the safety of all who sail on it. Made from high-quality cotton, this t-shirt features a bold graphic print with the words "Keep Closed At Sea" emblazoned across the back. Perfect for sailors, boaters, and anyone who enjoys spending time on the water, this t-shirt is sure to become a favorite in your wardrobe. Whether on the waves or just hanging out on shore, this t-shirt is a great way to make a statement and show your support for safe boating practices.

  • Maritime wear created for sea creatures
  • Unisex
  • Medium fit
  • Keep Closed At Sea print on back and chest 
  • Worldwide Nation logo print on right sleeve 
  • 180 GSM fabric
  • 100% organic cotton



  • Worldwide shipping 
  • Free shipping over €100
  • Order processing time: 1 business day
  • Delivery around Europe: up to 5 business days
  • Delivery around the rest of the world: up to 7 business days
  • More info: Shipping Policy


GOTS is a textile production certification that limits the use of toxic bleaches, dyes, and other chemical inputs during the production process of textiles. It is internationally recognized as the toughest organic textile standard because it goes far beyond verifying the organic farming process to include every step of manufacturing.

OEKO-TEX certified fabrics are entirely free from harmful chemicals and safe for use in contact with the skin. To attain OEKO-TEX Standard 100 certification, the fabric has been tested and certified free from toxic levels of more than 100 substances known to be harmful to human health.

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