Shoulders have very little padding
if any at all.
Instead, they usually slope slightly.
Sleeves buttons of a good suit can
be undone. Suit sleeves should show about one inch of shirt sleeve.
Provided you have the figure, the cut
should be like an hourglass - slim around the waist line.
The classic English suit has two long
side vents, which makes it more flexible when sitting down.
The trousers are cut to rest high on
the hips and sit relatively close to the leg. Cuffs are not common.