Where collar stays go: inside the collar points
Collar stays live in two small pockets on the underside of your shirt collar — one in each collar point. You won’t see them when the shirt is on. Their job is to keep those points lying flat and crisp against your chest instead of curling, flaring, or flapping over.
If you’ve ever pulled a shirt out of the closet and found one collar point standing up while the other behaves, you’ve met the problem stays solve. A frequent complaint online is exactly that: “left collar always comes out and right collar always stays.” The fix is usually a missing or wrong-sized stay on the misbehaving side.
This guide is the how-to: which pocket, which way, and the order of operations around washing. If you’re still tracking down a set, start with can you buy collar stays separately.
Finding the pocket
Flip your collar up and look at the underside. Run a finger along the bottom edge of each collar point. You’re feeling for a slim opening — the mouth of a sewn-in pocket that runs from the collar’s edge toward the point.
Most dress shirts have these pockets built in. Some casual and short-sleeve shirts don’t, which is worth knowing before you go hunting for an opening that isn’t there.
If your shirt came with thin plastic strips already in the collar, those are stays, and the pockets are exactly where you’ll be putting your new ones.
Which way the stay goes in
This trips people up, so keep it simple:
- Pointed (or rounded) end goes in first. It travels deep into the pocket, toward the tip of the collar point.
- Flat or squared end stays near the opening. That’s the end you’ll grab later to pull the stay back out.
Collar stays are usually shaped to match the taper of a collar point — narrower at one end, blunter at the other. The narrow end follows the collar to its tip; the blunt end sits at the edge. If the stay seems to fight you, you’ve likely got it backward, or it’s the wrong length.
Worth knowing: a few shirts skip the pockets but you can still use stays. Plain plastic stays sometimes come glued or tacked in rather than fully pocketed, and the openings can be sewn slightly differently from brand to brand. The shape is standard enough, though, that a single set works across nearly every shirt that has pockets at all. If yours has no pocket and you want stays, a tailor can sometimes add one — but for most men it’s easier to wear stays only on the shirts built for them and choose other collar styles for the rest.
How to insert collar stays, step by step
- Lift the collar. Fold it up so the underside faces you and the pockets are accessible.
- Pick the right size. The stay should fill the pocket almost completely — its tip seating against the closed seam at the collar point. Too short and it slides around; too long and it won’t seat. If you’re unsure on sizing, our buying guide walks through measuring.
- Slide the pointed end in first. Guide it gently along the pocket toward the point. Don’t force it — if it catches, back it out and reseat it rather than pushing through the seam.
- Seat it fully. Push until the stay’s tip reaches the end of the pocket and the flat end sits flush at the opening. It should disappear inside.
- Repeat on the other point, then fold the collar back down. Both points should now lie flat and even.
That’s the whole process. With a metal set it takes ten seconds per collar once you’ve done it a few times.
Do you keep them in or take them out?
While you’re wearing the shirt: leave them in. Holding the points flat all day is the entire point.
Before you wash or iron: take them out. This is the rule that protects both the stays and the shirt. Thin plastic stays warp in the dryer and crack under a hot iron. Even metal stays can press a faint outline into the collar if you iron over them. Pull them before laundry, set them aside, and slide them back in once the shirt is pressed and ready.
That habit creates the obvious risk — small metal strips that vanish between wash and wear. Keeping a reliable spot for them is its own small discipline; see where to store collar stays.
A related question men ask is whether stays ruin shirts. Used correctly, they don’t — they protect the look of the collar. The damage stories almost always trace back to one of two mistakes: leaving stays in through a hot wash or iron, which warps them and can press a ridge into the fabric, or forcing a too-long stay until it pokes through the seam at the point. Remove them before laundry and size them to the pocket, and stays extend the life of a good collar rather than shortening it.
When the collar still won’t lie flat
If you’ve got stays seated correctly and a point still curls or flares, run through this:
- Wrong size. A stay that’s too short leaves the tip of the point unsupported, and that’s the part that curls. Match the stay to the pocket length.
- Empty pocket. Double-check both sides actually hold a stay. It’s easy to reinsert one and forget the other after washing.
- Worn-out plastic. A warped or bent stay holds nothing. Swap it for a fresh one — ideally metal.
- Collar flaring without a tie. Slot-in stays keep points flat but won’t pin them to your chest. If the collar spreads open when you wear it tieless, that’s the case for magnetic stays, which add a magnet to hold the point down.
When to put them in — and how often
A practical rhythm makes this effortless. Insert the stays when a freshly laundered shirt is pressed and ready to hang or wear, and leave them in until the next wash. You’re not reinserting them daily; you’re doing it once per laundry cycle. For a shirt you wear often, that might be once a week. The only times to handle them are: out before the wash, in after the press. Anything more is fussing.
If you tend to forget, tie the habit to something you already do. Some men reinsert stays the moment they take a pressed shirt off the ironing board; others do it when hanging clean laundry. Pick one trigger and stick to it, and the stays stop being something you think about.
A note on polo and casual collars
Stays are built for the structured collars of dress and button-front shirts. Polo collars, which curl and wave on their own, don’t take a slot-in stay — there’s no pocket. The honest fix for a floppy polo collar is a sharper press and, over time, choosing polos with a denser, better-knit collar that holds its shape. Don’t try to force a dress-shirt stay into a polo; it has nowhere to go and won’t help.
The bottom line
Collar stays go inside the two collar points, pointed end first, and they stay there while you wear the shirt. Pull them before washing and ironing, slide them back in after, and keep a few spares somewhere you’ll find them. Get the size right and seat them fully, and the payoff is a collar that lies flat and even all day.
A well-seated stay in the right size does quiet, invisible work — and a flat, clean collar is most of what makes a business casual collared shirt look deliberate rather than thrown on.
