Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If you need heavy duty, rugged work shirt...well, here it is!

As a machinist I sometimes need a longsleeved shirt. Shopped on Amazon.com and narrowed the Riggs down by user reviews. This shirt is heavy duty and I don't see it wearing out any time soon. I will be buying one or two more. Size is on the big which is good if you move around a lot on the job.