overheater

plural overheaters

1. An individual who tends to feel too hot.

   Don't think that technical features and concern about breathability is only for super-techno-dweebs, backcountry skiers, and serious overheaters.

   1994 December, Skiing, volume 47, number 4, page 212

   1 more example

   A crewneck works well for overheaters and warm spring days; turtlenecks keep warmth in and snow out; and zippered turtlenecks are the most versatile. There are varying fabric thicknesses to choose from on the market.

   2002, Gene Prater, Dave Felkley, Snowshoeing, page 75