Top by Oasis, It's hip to be square, Spread collar, Long sleeves, Button placket, Chest pockets, Regular fit, A standard cut for a classic shape. Opening its first store in 1991, Oasis has gone on to become one of Britains most popular high-street brands. Expect vibrant prints and plenty of colour across a collection of dresses, tops and tailoring, plus bags and shoes for all your accessory needs the add-to-bag potential is real.