If you buy one thing this year make it this shoe

(Image credit: Shutterstock/Rex)

ASOS has shared its trend report for 2019, based on what its customers have shopped the most in 2018, and there are some interesting trends ahead, especially when it comes to shoes.

More specifically, you'll either be pleased or annoyed to know that dad trainers aren't going anywhere. Last year, the site saw a 25% increase in sales across both men and womenswear for the chunky shoe style, which was big in the 90s. So if you're buying into one thing this year, make it this.

Elsewhere, ASOS predicts that the jumpsuit will be replaced by the short suit in 2019, which is a dressier alternative for spring. Cycling shorts are still a big trend for SS18, so you can opt for those and a blazer, though I'm more into loose tailoring myself, a la Julia Roberts at the end of Pretty Woman. So 80s. So chic.

Other key pieces you might want to invest in for the season ahead are:

A tie dye print dress - Animal print sales on ASOS went up by 233% last year, but it sees 2019 as the year of tie dye and reflective metallics.

The ditzy dress - Last year, the ASOS green ditsy print dress sold out in a couple days after being re-stocked twice. It's coming back for 2019 with a belted detail.

A good suit - Tailoring sales went up 460% in 2018, and the ASOS customer tends to shop for the whole outfit rather than a blazer or trouser separately.

A pair of ethical jeans - ASOS DESIGN denim were up 23%, and this year, the goal is for 100% of the ASOS Design cotton-based jeans to be made from sustainably sourced cotton.

Penny Goldstone

Penny Goldstone is the Digital Fashion Editor at Marie Claire, covering everything from catwalk trends to royal fashion and the latest high street and Instagram must-haves.

Penny grew up in France and studied languages and law at the Sorbonne Nouvelle University in Paris before moving to the UK for her MA in multimedia journalism at Bournemouth University. She moved to the UK permanently and has never looked back (though she does go back regularly to stock up on cheese and wine).

Although she's always loved fashion - she used to create scrapbooks of her favourite trends and looks, including Sienna Miller and Kate Moss' boho phase - her first job was at MoneySavingExpert.com, sourcing the best deals for everything from restaurants to designer sales.

However she quit after two years to follow her true passion, fashion journalism, and after many years of internships and freelance stints at magazines including Red, Cosmopolitan, Stylist and Good Housekeeping, landed her dream job as the Digital Fashion Editor at Marie Claire UK.

Her favourite part of the job is discovering new brands and meeting designers, and travelling the world to attend events and fashion shows. Seeing her first Chanel runway IRL at Paris Fashion Week was a true pinch-me moment.