speaker cables for surrounds


I am building a home theater for my new house. My current system includes:

Front L/R: B&W 800D
Center: B&W HTM1D
Surround side: B&W DS8S x 2
Surround back: B&W DS8S x 2

Any suggestions on speaker cables for my surround speakers? The surround side would be approx 10 meter runs, and the surround back would be approx 15 meter runs.
deependx
Often recommended here - Blue Jeans Cable. Custom length and terminations available.
Go with a pre/pro and seperate amps placed near the speakers. The other plus besides WAY better sound is, it is a lot easier to run interconects as they a slimmer and more flexiable.
I was stunned and amazed when I Went from long speaker cable to shorter ones with long interconnects.
I bought Audioquest Type 4 speaker cables in bulk a few years back. They do the job quite nicely for my surround speakers. You may want to try them or other models lower down the line.
I would use regular Monster XP in the reddish clear jacket from any BestBuy or other. Good enuf for long runs as surrounds and NOT costly. Th stuff is OFC and dont be fooled by looks or cost. You can obtain like 50 feet for $35.00 then cut and use as bare wire hook up. No terminations. Now the front three speakers I would use good stuff. Only use Monster XP on surrounds especially with long runs. The stuff is highly flexible too to move around corners and up and down where ever. I just saved you ample money.