Toslink/optical cable recommendations

Mitsubishi eska pof.

meets toslink wavelength and aperture requirements, 0 tolerance.
No fractured glass fiber for 0 induced jitter.

I have both the Unique Products glass toslink and the Wireworld (I think I have the 6) and have done comparisons. While the U.P is an incredible value and produces excellent sound, the Wireworld is superior in terms of sound, materials and construction. The improvement is sound is quite discernible on fine high end equipment but maybe not very discernible on routine equipment.

dne, is the Wireworld cable glass or synthetic fiber?  Just curious.

The Wireworld is glass.

Just an update-  I decided the components for connection would be my Primare CD32 & Wyred 4 Sound DAC.
After extensive research I chose the Lifatec cable which I've installed today & it's superb. Excellent inner detail & mid frequency retrieval. 
Also Nik from Lifatec has been extremely cordial & helpful. 

Highly recommended.