Sweater
Part of speech: noun
Definition: A knitted jacket or jersey, usually of thick wool, worn by athletes before or after exercise. A similar garment worn for warmth. A person who sweats.
Example sentence: I still sweat. My guts are still grinding out there. Sometimes I have enough cotton in my mouth to knit a sweater.
Perspirer
Part of speech: noun
Definition: A person who perspires (sweats).