hoodie invisible

hi! i want to make a hoodie from marvelous designer, but because the mesh is one sided, the inside of the hoodie ends up invisible in game. can i make the hoodie double sided or is there a simpler way to create hoodies that im missing.

drive.google.com/file/d/1h1mbas07IrZwaqu5f2Xd0WC-MDZg2WdW/view?usp=sharing
heres a screenshot of what i mean