I wasn't sure from the main image, but then I went digging into your gallery and that's what it looked like. thanks. How much weight do you think it added for you?
It's not necessary, as you could just hem the edges. I'm just a big fan of grosgrain. I think it adds a level of durability to any project. Plus it looks nice. It doesn't weigh all that much, but yes, it will add a few grams to the weight. I just finished my DIY hammock with an integrated bugnet. I used grosgrain on both edges of that too. You can see details of it in the DIY section.
A tree's a tree. How many more do you need to look at? ~ Ronald Reagan