The Alamo defenders, during the 1836 siege, primarily wore a variety of clothing typical of the Texas Revolution era. Many of them wore uniforms that were non-standard and often not military-issue, as they were largely volunteers rather than regular army soldiers.
Those associated with the Texian forces often wore a mix of civilian clothing and military attire, which could include items like frock coats, waistcoats, and trousers. Some wore the traditional Mexican military uniform, while others wore frontier-style clothing, such as leather jackets and slouch hats.
The most recognizable look associated with the defenders often includes elements like cotton or wool garments, leather boots, and wide-brimmed hats, similar to what was worn by early American settlers. Specific names like "Texian" uniforms or "frontier" clothing are sometimes used to describe their attire, but there was no formal uniform as seen in modern military dress.