Clothes designed to be worn while working, especially in a physically demanding job.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "workwear" in a sentence
"The current interest began around 2007 with a renaissance in American workwear and heritage style, led by brands like Woolrich Woolen Mills, a line inspired by the Woolrich label, known for its buffalo check."
"It's funny to see the workwear (and outdoor) fashion come round again, the last time was in the recession of the early '90s."
"Rag & Bone's modern interpretation of traditional workwear and athletic workwear was a remix rather than a remake, says the Journal's Ray Smith."