it is almost 100% that a 3d model of a suit will be not wearable, especially one that is meant to be soft fabrics. a hard suit such as iron man etc may be wearable if the model has been specifically designed that way but most 3d models are for visual purposes such as video games where they just have to look like the object. often they will have lower detail in areas that wont be seen or will not have detail at all. they will likely be a solid object and have to be hollowed out at a bear minimum to make them anywhere near wearable. even helmets unless specifically made to do so, will not have space to put your head in.