sleek

make slick or smooth

well-groomed and neatly tailored; especially too well-groomed; "sleek figures in expensive clothes"

designed or arranged to offer the least resistant to fluid flow; "a streamlined convertible"

having a smooth, gleaming surface reflecting light; "glossy auburn hair"; "satiny gardenia petals"; "sleek black fur"; "silken eyelashes"; "silky skin"; "a silklike fabric"; "slick seals and otters"