VTG 90s Cotton Colorful Striped Short Sleeve Shirt Boxy Fit Double Pocket M

Vintage 90s vibrant short sleeve button front shirt with multicolor stripes. Features a front double pocket and boxy design. A small stain in the front. Bottom part, see last photo. Haven’t tried the stain remover. Brand tag was cut off, feels like cotton or cotton blend. Measures like a medium. Modeled in size 4, small, 5.7” for reference.