Optical digital cables?

Agree with djones51 - - and be careful, no sharp bends.

Another option is to go to a commercial optical cable like what the internet providers use and have it terminated to your required size. These cables are very well made and made to an industry spec not to mention relatively inexpensive. find a local cable shop and ask then to cut and terminate a cable for your use. You do not need fancy audiophile optical cables go with the industry standard with appropriate specs

The Blue Jeans toslink, which is Mitsubishi ESKA, is just like all the other low cost mono-filament toslink cables.  It's basically a single plastic element that transfers the light.  These plastic mono-filament will sound dull and low-resolution compared to the better glass fiber cables.

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The Lifatec is the best bundled glass fiber cable for the money.  If you're on a budget, buy the Lifatec.  It performs much better than Blue Jean or the other mono-filament. 

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Other alternatives are the Wire World Supernova 7.  Or, if you want to get really expensive, the Audioquest Diamond.  They are all just bundled glass/silica fibers, so I don't expect much difference between them.  Lifatec will cut and terminate each cable to your order (you can order custom lengths).  Wire World is a manufactured cable that comes in set lengths.

Thanks everyone,

I'm going to go with the Lifatec. I don't expect any sharp bends outside of the back of the KEFs to the back of the Node 2. I think I'll be fine with 20" but will go 24" for a cushion.