Check out UF PROGen 2 Combat pants Tactical Pants 6 pose type 3D Model Pack 3D model on CGTrader for $10.98. High-quality mesh by rhyton.
STL (Stereolithography, filesize: 9.81 MB), OBJ (OBJ, filesize: 49.8 MB), FBX (Autodesk FBX, filesize: 150 MB), OTHER (Other, filesize: 10.8 MB), BLEND (Blender, filesize: 15 MB), ZPAC (Marvelous Designer, filesize: 29 MB)