So I tracked it down on the interweb... only to discover it's between $107 and $142!
Turns out it's a (special) Kumihimo silk cord made by Artisan & Artist*:
"For thousands of years, a special breed of artists in Japan have made silk cords of exceptional strength, texture and beauty.
These KUMIHIMO artists are known throughout the world for making braided straps for use on the battle armor and swords of the feared Samurai warriors. ARTISAN & ARTIST* has revived this classic art by employing specialists who weave these steely cameras straps by the traditional methods. The length of this strap can be shortened by tying loose knots in it, which also helps keep the camera positioned firmly in front of you without sliding back and forth on one's neck. ARTISAN & ARTIST* has discovered quite an invention in the Silk Cord Strap!
The smooth silk texture of the cord is comfortable on your neck, even in hot weather because the material breathes with your body temperature. The strong braids are nearly unbreakable for those worried that their camera will one day hit the deck due to a frayed camera strap. That simply won't happen with the Silk Cord Strap, one of the most unique camera restraints in the world!"
I really like them, but can't see myself forking out over 100 bucks for one - although it might make it on to the Christmas list :)
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