This specific 3D model, "Sport Suit Low-poly 3D model 64", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
The license for this digital asset is "Unknown license".
STL (Stereolithography, filesize: 516 KB), OBJ (OBJ, filesize: 698 KB), GLTF (glTF, filesize: 578 KB), ZPAC (Marvelous Designer, filesize: 6.54 MB), FBX (Autodesk FBX, filesize: 1.13 MB), BLEND (Blender, filesize: 1020 KB)