I'm looking for something solidly built with heavy-weight fabric.
Amazon Essentials Men's Slim-Fit Long-Sleeve Plaid Flannel Shirt
$18.50
Russell Wilks
19 Karma
How about this slim-fit shirt from Amazon? It's definitely cheaper, but given the cost savings, that might work for you. I own one, and it fits my like a glove (I'm 5'10 and 150 lbs).