This specific 3D model, "Sport Suit Low-poly 3D model 57", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The license for this digital asset is "Unknown license".
STL (Stereolithography, filesize: 482 KB), OBJ (OBJ, filesize: 613 KB), ZPAC (Marvelous Designer, filesize: 7.49 MB), GLTF (glTF, filesize: 462 KB), FBX (Autodesk FBX, filesize: 942 KB), BLEND (Blender, filesize: 925 KB)