Difference between "flat" and "snagless" ethernet cables

[may1]

I was looking for flat LAN cables so it would go under my door to the router located in another room. When I search for "flat ethernet cables" on Amazon, I get a bunch of results on "snagless" ethernet cables.
http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=467128533&pf_rd_i=468294
This is slightly cheaper than flat cables and it's from Belkin.
Do the 2 terms mean the same thing (ie. flat/thin)?

 

[sk1939]

Snag-less is not flat, it has to do with the PVC tabs by the plastic clip that prevent the clip from catching on things when your pulling it past things. I would not get a flat ethernet cable personally, ethernet has electrical EMI and RFI properties that require it to be twisted, and flat cables generally violate those rules.

 

[Someone Somewhere]

Agreed - flat is a bad idea, especially on long runs.

Running cables under a door is one of those things you really want to avoid if at all possible.