The main difference between single-breasted and double-breasted blazers is the former has one row of buttons while the latter has two. Single-breasted blazers also have a narrower overlap at the front compared to double-breasted ones. This makes single-breasted blazers more versatile and easier to style while double-breasted blazers give a wider and more relaxed look.

A single vent has one opening at the centre back, while double vents use two openings at the sides. Double vents generally offer more movement when sitting or placing your hands in your pockets, while a single vent gives the back of the blazer a simpler finish.

It can be either. Solid navy, black and grey styles pair naturally with shirts and trousers for formal or office settings, while printed, checked and lighter-colored single-breasted blazers work well with t-shirts, polos and jeans for more casual dressing.

Yes. Pair a single-breasted blazer with clean dark jeans and a plain t-shirt, polo or casual shirt. Wear the blazer open and finish with sneakers for a relaxed outfit or loafers when you want the same combination to look slightly sharper.