Cloth (material) = tuko.
"English-Esperanto Dictionary" by John Charles O'Connor and Charles Frederic Hayes
You have guessed aright, Tuko.
"The Childhood of King Erik Menved" by Bernhard Severin Ingemann
This trio (from Rancho Cucamonga, California) got a break when primary songwriter Tuko Proby e-mailed R&B star Raphael Saadiq with a link to the band's website, and he promptly hired them to open for him on a 2009 tour.