Denim, but it still heated up in a brilliant fashion.
The younger me ran the other way when he spotted me, must've scared me witless seeing soeone stand up from behind the *cough* campfire pit just as it lights off.
Memory tells me that it looked humorous.
Like some undead creature waving it's arms heavenward and wailing in low bass tones as a million story tall shadow wavers against the overhead cover..