From Grand Trunk's Facebook:
"GT Fans: We need your help!
We're launching the first piece in our new embossed hammock collection, and want you to help us choose which color we should kick off with. Click the tab on the left to see more details. When you vote, you'll automatically be entered to win your own woodgrain embossed double hammock. 5 lucky winners will take home the prize."
Here is the only picture I could find of what the material will look like: