adjectives
well-groomed and neatly tailored; especially too well-groomed
"sleek figures in expensive clothes"
is similar to
neat and smart in appearance; well cared for
"the manager was a beautifully groomed young man"; "his horse was always groomed"
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"