Swirled marble across the full range, softer and more fluid than a classic veined marble, so it reads as colour first and pattern second. That makes it one of the easier prints to live with, because it does not fight the grips, stickers and card holders you have already added.

Each print runs across the range, so a phone case can match a laptop sleeve, a backpack, a pencil case and a notebook. That is why these tend to go out as sets rather than singles, particularly around back to school.

On colour, the muted tones are the safer buy if the case is going to live under a grip or a pop socket, since a busy print fights anything mounted on top of it. The brighter swirls are the opposite and are meant to be noticed. Use the images on each product to see how a print sits on that item, because the same artwork reads differently on a phone case and a backpack.

This is the swirl line specifically. For veined, glitter, cloudy and metallic marble prints, the full marble collection has the lot. Everything is hand-printed in the UK and made to order, with free worldwide shipping, and every order plants a tree.