Panty

Women`s underpants. Can be many different styles including thong, Rio or Brazilian Back, G-string, etc.
Found on http://www.labeshops.com/news/?page_id=9

panty

a stretchy helmet cover that is used to designate the jammer (with a star) or a pivot (with a stripe).
Found on http://svrollergirls.wordpress.com/roller-derby-a-glossary/

PANTY

a stretchy helmet cover that is used to designate the jammer (with a star) or a pivot (with a stripe).
Found on http://junctioncityrollerdolls.com/about/roller-derby-glossary/

Panty

a stretchy helmet cover that is used to designate the jammer (with a star) or a pivot (with a stripe).
Found on http://talknderby.blogspot.co.uk/2010/12/roller-derby-terminology.html

Panty

No, this has nothing to do with a person's unmentionables. This term refers to the helmet cover worn by the pivot and jammers during play. A jammer is identified by the helmet cover with a star on each side. The pivot is identified by the large vertical stripe in the middle of the helmet cover. Jammers must being wearing the panty to score points.
Found on http://www.examiner.com/article/talking-derby-a-roller-derby-glossary
No exact match found