[sold] 100% cotton, short-sleeve Guayabera shirt in traditional style - four pockets and pleats, but WITHOUT embroidery. (Sin Bordado.) Mexico. This is natural, unbleached cotton known as 'manta' cloth. Its less uniform fibers make a sturdy and attractive cloth. Slightly heavier fabric is still cool because it does not cling. A beautiful variation on the classic Guayabera, rustic yet contemporary. SIZING: Our boys' shirts run small, usually TWO FULL SIZES smaller than typical U.S. sizing. For example, if you usually take a US 6, our size 10 would likely be the best fit. back