Very vibrant, vintage shirt, size medium?

Very vintage Shoulder pads that can be removed . Ptp 18 Length 25 It does have stretch I'm not sure of the brand or material? I purchased this from another seller. Not in perfect condition 💔 ( nothing major, hardly noticable) Still looks good on! It's too big for me. Feels like Cotton? Love the vibrant colors! Would definitely fit an oversized small or a medium. Clean, smoke-free