A blazer is practically interchangeable with a suit jacket, worn alone or mixed and matched with other clothing.
A blazer can be easily folded by bringing the shoulders and sides to meet the centre seam on the back, then folding the bottom of the jacket up behind - this ensures the lapels aren’t bent out of shape and prevents any wrinkles or folds.
Blazers can be matched with anything - try matching with a blue chambray shirt and jeans for a classic, tonal feel that’s both smart and casual.
A blazer is a great way to accessorise an otherwise plain outfit. Anything goes, but a blazer is generally most effective when worn open with a more casual, laid back feel.
While there’s no limits, a button up shirt is the best match for a blazer - an Oxford shirt is a great way to match up a blazer with a casual, preppy wardrobe.