I got my WBBB double layer 1.7 not to long ago and I have to say I love it! When I got it, I also got the Travel Sock. The quality of the TS is great and it does make it warmer inside, but it's too short for the hammock and the Velcro is making it fraying at the end of my hammock. It's also starting to do the same to the bug net... Does anyone else have this problem? It's not bad... But this is my first Black Bird, so I'm a little paranoid... I tried to upload pictures, but I couldn't...