Fiberglass insulation that didn't cause skin irritation?
There's a lot of fiberglass that is yellow. I have yellow fiberglass in my attic not dissimilar to this



More people are familiar with Owens Corning and their pink fiberglass (they advertise heavily and have licensed the Pink Panther as their mascot). Johns &amp; Mansville (typically sold at Lowes) is brownish in color



Keep in mind that fiberglass takes time for the fibers to work into your skin. I often don't feel it until I shower afterward