No need to toss out the bright colored tees from your youth just yet. Throw on a neutral blazer over a t-shirt to instantly elevate your look without suppressing your personal style. [2] X Research source Check if you have closet essentials like a high-quality t-shirt of a solid color that you can dress up or down. [3] X Expert Source Cassandra SethiPersonal Stylist & Image Consultant Expert Interview. 9 September 2021. A super-soft black, grey, white, or navy sweater. [4] X Expert Source Cassandra SethiPersonal Stylist & Image Consultant Expert Interview. 9 September 2021. Comfortable yet good-looking trousers that you can wear even when you step out of your house. [5] X Expert Source Cassandra SethiPersonal Stylist & Image Consultant Expert Interview. 9 September 2021.

Often this is as easy as buttoning up four buttons on a shirt instead of three. Other times it’ll require buying slightly more modest items.

Stick with neutral colored dresses to really drive home the mature look. [8] X Research source

If you live in a warm climate, try a tropical wool pantsuit for quality and comfort. [10] X Research source Just make sure to avoid anything too big and boxy. Oversized clothes can make you look younger than you are. [11] X Research source

For women, try out a silk blouse. It’s a great way to bring a little bit of charm into a mature and professional outfit. [13] X Research source If you’re looking for something to wear with a suit, consider a ruffled blouse for a little extra flair. [14] X Research source

Some tops, particularly women’s tunics and sweaters, are meant to be worn untucked. Leaving these garments untucked doesn’t necessarily make you look young. If your shirt has tails, or gets longer in the back and shorter in the front, it’s probably meant to be tucked in. [19] X Research source After tucking in your shirt, raise you arms straight up over your head to make sure you haven’t tucked too far. [20] X Research source

Using a clothes steamer is another option for keeping your shirts smooth and unwrinkled. Steaming will eliminate any lurking odors in the shirt as well. [22] X Research source

A pair of stiletto heels can propel nearly any look into adulthood. Wear them around the office for a more mature image. [25] X Research source Go for skinny heels over thicker ones. Shoes with skinnier heels tend to be worn by adults, whereas thicker heels are more common to young people. [26] X Research source Don’t underestimate the power of flats. In both casual and business settings, a nice pair of flats or loafers can go a long way in making you look more adult. [27] X Research source

Make sure you look for a bag that’s big enough to be functional, but not so big that it calls unwarranted attention to it. [29] X Research source

For a little extra pizzazz, shop for a pair of designer frames. If you have a round face, look for frames with angled corners like a retro wingtip or a cat eye shape. If you have a more square face, go for round or curved frames. People with elongated faces should lean towards frames that are a little wider than their brow line.

Choose one or two accessory pieces, like a necklace and pair of earrings, rather than four or five. [32] X Research source Understated is usually better than overstated when it comes to accessories that make you look more mature. [33] X Research source