I was out for a ride today and talked to a rider who had wheels with what looked like weaved line for spokes. Talked to the guy and he said they are Berd poly spokes.

He said they are basically Dyneema or Spectra line with a stainless end that allows them to use standard nipples. And are about 90g/wheel lighter than standard stainless spokes. They look interesting, but at $8/spoke I'm not sure I'm ready to try them.