Is it OK to wear button down shirt untucked?
It's a question that's often debated. Here are a few guidelines: Shirts that are made with a flat bottom hem are meant to be worn untucked. But if the shirt has visible “tails” — that is to say, the hem varies in length, rather than being even all the way around — it should always be tucked in.
These often have a more straight hem that make them great to leave untucked. Dress shirts in linen are also perfect if you prefer the untucked style. As long as they have the right length, stylish business shirts can also be worn untucked if styled properly to match the occasion.
On specific occasions wearing an untucked dress shirt could come off as unprofessional, yes. However, that's not to say it's a bad look overall. Given the right time and place, an untucked dress shirt gives off a casual and stylish vibe.
Tucking Rules
In general, a very good rule of thumb is to leave your dress shirt untucked. This means you will have to make sure the length is right; if your shirt is too long it'll look like you're wearing a dress, which isn't the look most of you are going for if I had to place my bets.
A full tuck looks best on someone with a defined waistline and a relatively flat tummy. This is especially true if you're tucking a fitted top into fitted bottoms. A flowy top with a full tuck is much more forgiving. The hardest way to do a full tuck is with a fitted top in fitted bottoms.
If you want. Tucking pants into boots is fashionable for 2022. While the coastal aesthetic is very fashionable right now, we still tuck shirts in pants. The chic French aesthetic will never go out of style.
The front tuck does a few things that we love. It helps define the waist and make it appear smaller, it creates a more balanced outfit, and it allows us to show our belts to complete our outfit.
The optimal length for an untucked shirt would be 1 inch higher than the “butthigh” The front length should fall no longer than the front crotch point and no shorter than 2 inches above the front crotch point. A good guideline would be to have your shirt's front length fall right at the bottom of your zipper.
As offices across the country become more casual and workplaces are ditching the suit and tie look, men are redefining the term “business casual.” These days wearing an untucked shirt to work or a nicer restaurant is often considered the norm.
As a general rule, if a shirt has a straight hem, for example a polo shirt, it is designed to be left untucked. However, if a shirt has a curved hem, for example a business shirt, it is designed to be tucked in.
Can button downs be worn casually?
The reality of how button-down shirts can be worn is different. Button down shirts are a wardrobe workhorse in both women's and men's clothing, and yes, they can absolutely be casual, either by styling or by design!
A good rule of thumb is that an untucked shirt should come to the middle of the butt. Another good rule of thumb is that the front bottom shirt tail should end midway down the fly of your pants.

What is out of style for 2022? High waisted jeans, high waisted pants, high waist tennis skirts, skater skirts, knit pants, skinny jeans, hoodie sets, short blazers, leggings, fur coats, cropped leather jacket, A-style mini dresses, and cold shoulders tops are some of the clothes that are not in anymore.
High-Rise, Wide-Leg Denim.
Although skinny jeans aren't totally trending (yet), L'OFFICIEL makes an argument for digging out that long-forgotten denim look with new styling tricks that just might change your outlook on the slim silhouette. In 2022, celebrities and fashion influencers have certainly found better ways to wear their skinny jeans.
What Is the French Tuck? The “French tuck,” also known as the "half-tuck" or “one-hand tuck,” is a term for the simple styling trick of tucking in only the front of your shirt, popularized by fashion expert Tan France on Netflix's Queer Eye.
The front tuck or half tuck is probably the most popular and easy option when it comes to tucking in your shirt. The main reason you want to do this is to visually create a waist. Front tucking your shirt draws the eye up to your waist rather that leaving your body visually one long line.
Oversized shirts are so popular, and wearing something oversized often makes you look bigger. But a little front tuck of your shirt keeps the shirt from overwhelming your body, AND it helps give your silhouette a waist. And show your waist is always more flattering and makes you look slimmer.
Pair an untucked dress shirt with jeans to give off a casual vibe. Choose a comfortable pair of jeans in your preferred style. As you put the outfit together, check that the dress shirt doesn't fall below the middle of the zipper.
DON'T: WEAR AN UNTUCKED SHIRT...
An untucked shirt can look great with shorts or jeans for a smart-casual look but when wearing a Blazer, tucked is the only way! If you are aiming for a more relaxed feel then it's much more stylish to open the top button or two on your shirt.
› Style › Casual Shirts
How to Know Whether or Not to Tuck in Your Shirt
Should I tuck my shirt in or not?
A good rule of thumb is that an untucked shirt should come to the middle of the butt. Another good rule of thumb is that the front bottom shirt tail should end midway down the fly of your pants.
The optimal length for an untucked shirt would be 1 inch higher than the “butthigh” The front length should fall no longer than the front crotch point and no shorter than 2 inches above the front crotch point. A good guideline would be to have your shirt's front length fall right at the bottom of your zipper.
Pair an untucked dress shirt with jeans to give off a casual vibe. Choose a comfortable pair of jeans in your preferred style. As you put the outfit together, check that the dress shirt doesn't fall below the middle of the zipper.
The front tuck does a few things that we love. It helps define the waist and make it appear smaller, it creates a more balanced outfit, and it allows us to show our belts to complete our outfit.
As offices across the country become more casual and workplaces are ditching the suit and tie look, men are redefining the term “business casual.” These days wearing an untucked shirt to work or a nicer restaurant is often considered the norm.
DON'T: WEAR AN UNTUCKED SHIRT...
An untucked shirt can look great with shorts or jeans for a smart-casual look but when wearing a Blazer, tucked is the only way! If you are aiming for a more relaxed feel then it's much more stylish to open the top button or two on your shirt.
Do leave your blouse untucked when the shape is made to be that way. Don't tuck when your pants are lower rise and will accentuate your hips.
With formal trousers: Sometimes tuck in
But if you skip the blazer and just wear a shirt or t-shirt with formal trousers, you could go either way: tucked makes the outfit more formal, untucked makes it more relaxed."
9 CUTE WAYS TO WEAR A DRESS SHIRT | How to style a button up shirt