How To · Fashion · Warm Weather
The Art of the Open Collar
The open collar is the definitive silhouette for the warmer months, offering a masterclass in intentional ease. It’s not about being messy; it’s about mastering the geometry of the neckline.
5 min read · IrisWhen the mercury rises, the button-down shirt often feels like a constraint. The open collar—whether it’s a classic camp collar, a revere, or a standard spread collar worn unbuttoned—is your primary tool for navigating heat with dignity.
The mistake most men make is confusing 'open' with 'sloppy.' A successful open collar requires structure at the shoulder and a thoughtful approach to the fabric’s drape. Here is how to keep it sharp while staying cool.
An open collar should look like a choice, not a surrender to the heat.
Step one · 1 minute
Choose the right neckline
Avoid collars that are too flimsy; they will collapse against your chest and look disheveled within an hour. Look for a camp collar or a spread collar with a fused or lightly interlined band. This ensures the fabric stands away from the neck rather than clinging to it.
Test the structure by pressing the collar point; if it springs back, it has the integrity needed for an open-collar look.
Step two · 2 minutes
The two-button rule
For standard button-downs, unbuttoning two buttons is the golden ratio. One button often looks too formal or restrictive, while three can veer into vacation-resort territory that isn't appropriate for city wear. If the shirt has a deep V-neck construction, one button is usually sufficient.
Ensure the placket remains flat; if it starts to curl outward, the shirt is likely too tight across your chest.
Step three · 2 minutes
Manage the undershirt
Visible undershirts are the enemy of the open collar. If you must wear one for moisture management, opt for a deep-V neck in a tone that matches your skin rather than stark white. Ideally, choose high-quality linen or a cotton-silk blend that breathes well enough to go without one.
If you choose to go without an undershirt, ensure your chest grooming is intentional.
Step four · 2 minutes
Anchor the silhouette
An open collar creates a visual 'V' that draws the eye downward. To keep the proportions balanced, ensure your trousers have a bit of weight or structure. A pair of pleated chinos or linen-blend trousers provides the necessary anchor to prevent the look from feeling too top-heavy.
Avoid overly skinny jeans, which clash with the relaxed, airy vibe of an open collar.
Step five · 3 minutes
The tuck-in decision
The open collar looks best when the shirt is tucked in to define your waist, especially if the shirt has a straight hem. If you prefer to wear it untucked, ensure the shirt length hits mid-fly; anything longer will overwhelm your frame and negate the crispness of the open collar.
Use a 'military tuck' if you are tucking in to keep the fabric smooth across the torso.
How to know it works.
The look is successful when the collar frames your face without drooping, and the open neckline feels like a deliberate design feature rather than a lack of buttons.
Questions at the mirror.
My collar keeps collapsing. What do I do?
You may need a shirt with a collar stay or a heavier fabric weight like a linen-cotton blend.
Is it ever okay to wear a blazer with an open collar?
Absolutely. It is a sophisticated look, provided the blazer lapel is wide enough to frame the open shirt collar.