About veil some works are unlawful and good in Islam. Adornments and utensil ornments are , that situations which cause beauty and suitability . And  inclusive beauties that Allah given and clothes  and  adornments which  dependents to jewels and etc.....

These works are unallowed  while make riot and vice .

Women  and  men in Islam invite to adornment , beauty , virtue , keep Islamize cover and veil .

Also in Islam women which believe to Allah ,  prevention  from  wear  skin-tight clothes and duplicity .

Mohammad (PBH) : If  women's  body obvious  of under their clothes that isn't cover or veil .

 

And also women which wears clothes but their clothes are skin-tight in their body , that their body obvious , Mohammad (PBH) about them said : Those women never goes to  heaven .

Women's pudendum which must not obvious presence to strange men is all of their body expect their face and hands . And also men's pudendum is from belly button until their knees .

 

If everyone be alone she or he must cover her or his pudendum because Allah and Angels always be with her or him .

Thank and encomium of Allah which with  that , goodness be complete .