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Type Fabric
World Roshar
Universe Cosmere
Featured In The Stormlight Archive
This page or section contains spoilers for Oathbringer!
This information has the ability to potentially ruin elements of the plot for the reader. Proceed with caution if you have not read this book.

Seasilk is a type of fabric used on Roshar.[1]

Properties and Characteristics[edit]

Seasilk is produced from undersea plants that grow along the Rosharan coasts.[2] It seems likely that it is an export of Rall Elorim in Iri.[3] When laundering seasilk it must be put in a warm brine to relax its fibers and then rinsed and brushed with the grain to restore its softness.[4]

Seasilk is used in all manner of lighteyed garments, such as dresses[5] and suits.[6]


  • Despite the fact that seasilk is produced from undersea plants, it would look very similar to silk from Earth.[2] As Roshar's insect cocoons typically have stone in them or melt in water, they cannot be used to make material.
  • Sea silk is also a real-world phenomenon, but is different from Rosharan seasilk in one respect: real sea silk is harvested from certain species of clams, rather than from plants, and is also spelled as two words instead of one.


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This page contains all the knowledge we have on the subject at this time.
Windrunner (talk) 12:14, 26 November 2017 (MST)