Is it obligatory for a slender girl whose charms are not apparent to wear a jilbab, or are a long khimar (head covering) and a short duru' (outer garment) sufficient for her, especially given her family's opposition?

The Muslim woman must adhere to what she deems appropriate for her in terms of modest dress (Shar'i لباس), and the objection of parents does not prevent her, because obedience to Allah takes precedence. The clothing must cover the entire body except for the face and hands, and it must not be form-fitting to the body. She has no excuse for not accepting modest dress due to her thinness or the objections of those around her. She must be proud of her religion and her modest dress and not be ashamed of it, and she must not respond to those who encourage her to wear tight clothes.