The fiber is by Fiber Stash. It was a lot of fun to spin. I wasn't sure how to prep it, but I divided it in half lengthwise. Then I gradually drafted each half into a continuous snake of fiber. I should have taken a picture of this. Opening up batts (especially fun, pretty, sparkly ones like this) is akin to opening up a Christmas present.
All spun up, it looks like:
I love how it all blended together into a preeeeeeetty oceanic colorway. Next time I see this vendor somewhere, I'm buying 4 more batts.