Based on product data from Amazon and Ariat , the size code stands for XXL-Tall (Regular Fit) . This size is specifically designed for taller individuals who require extra length in the torso and sleeves without the extra width found in "Big" sizes. Fit & Sizing Insights
: A versatile button-down that reviewers from Casa Raul describe as rugged yet professional enough for everyday wear. Summary of Reviews Based on product data from Amazon and Ariat
: Most garments in this size feature Greater Arm Mobility (GAM) technology, which uses underarm gussets to prevent the sleeves from riding up and the shirt from untucking when reaching or lifting. Top-Rated Products in XXLTR Summary of Reviews : Most garments in this
: Ariat's "Classic Fit" (often associated with XXLTR) is their most generous cut. Reviewers on Amazon note that these shirts can run slightly large; if you are between sizes, you may want to size down. if you are between sizes