The short answer: those tidy little threads running across the back pockets of a brand-new pair of golf shorts are a basting stitch, and they are designed to be removed. The reason back pockets are sewn shut on golf shorts is purely a manufacturing and presentation choice. A single line of loose thread holds each pocket flat and closed while the garment is folded, boxed, shipped across an ocean, hung on a rack, and tried on in a fitting room. It keeps the shorts looking crisp and symmetrical until they reach you.
It is not a defect, and it is not a factory mistake. Once the shorts are yours, you snip the thread, pull it free, and the pocket works exactly as intended. Below is the full picture: what the stitch actually does, why golf apparel in particular tends to arrive this way, how to remove it without damaging anything, and whether you should bother using those back pockets at all once they are open.
What the sewn-shut thread on golf shorts actually is
The thread is called a basting stitch, sometimes referred to as a tacking stitch. It is a temporary, loosely sewn line that garment makers use throughout the trade to hold fabric in a fixed position. On golf shorts you will most often find it across the two back welt pockets, and occasionally across a hip pocket, a vent, or a jacket flap on other pieces. The giveaway is the thread itself. A permanent seam is tight, matched to the fabric color, and locked at both ends. A basting stitch is looser, frequently a contrasting color so it is easy to spot, and it lifts away in one continuous pull once you cut it.
The distinction matters because people occasionally cut the wrong thread. If a stitch is flush, color-matched, and structurally holding the pocket to the short, leave it alone. If it sits slightly proud of the fabric, spans the pocket opening in a straight line, and looks like it was added after the pocket was already finished, that is your basting stitch and it is safe to remove.
Why manufacturers sew the pockets shut in the first place
Three practical problems get solved by one line of thread, and understanding them explains why this is standard across quality apparel rather than a quirk of any single brand.
The first is shape. A welt pocket is essentially an engineered slit in the fabric, and an open slit wants to gape, curl, and pucker. Holding it closed during production keeps the pocket flat and the fabric around it smooth, so the shorts photograph well and hang cleanly on a rack. The second is transit. Between the factory and your closet, a garment gets folded, compressed, stacked, and jostled for weeks. A basted pocket cannot catch on a hanger, snag another garment, or stretch out of shape under the weight of everything piled on top of it. The third is fitting-room wear and tear. On the shop floor, dozens of people handle the same pair before anyone buys it. A sealed pocket keeps hands out, keeps the lining tucked in, and keeps that first-owner crispness intact.
It is the same logic behind the shoulder tacks and vent stitches you find on tailored jackets. The industry treats a fresh garment like a pressed shirt in cellophane: you want it to reach the customer looking exactly as the maker intended, and a few cents of removable thread is the cheapest way to guarantee it.
Why golf shorts specifically tend to arrive this way
Golf apparel leans harder on this practice than casual shorts do, and the reason is the way the category is built. Performance golf shorts are cut clean and structured, usually in a technical stretch fabric with a deliberate, tailored line rather than a slouchy one. That crisp silhouette is part of the point, and a gaping back pocket undermines it the moment the garment leaves the box.
You see this on the more refined, tailored pieces in a modern lineup. A pair like the tech shorts - navy is designed around a smooth four-way-stretch fabric that moves with your swing and holds a sharp line through the hip and seat, which is exactly the kind of construction where a flat, basted back pocket protects the intended shape in transit. The same goes for lighter, warm-weather tones like the tech shorts - beige, where any pucker or curl at the pocket would show immediately against the pale cloth. If you want to see the full spread of cuts and colors before you decide, the golf shorts men collection lays them out side by side.
There is also a cultural layer specific to the game. Golfers are trained not to carry much in their back pockets during a round anyway. A loaded back pocket bulges against your setup, shifts your balance over the ball, and works loose on the follow-through. Because the pockets see so little functional use on the course, sealing them for presentation costs the wearer nothing. The stitch is there to make the shorts look their best, and the golfer rarely misses the pocket in the first place.
How to remove the basting stitch without ruining the shorts
This is a two-minute job and the order matters, because the most common way to damage a new garment is rushing it with the wrong tool.
Use a seam ripper, not scissors
A seam ripper is the right instrument because its fine point slides under a single thread without touching the fabric. Slip the point beneath one stitch near the middle of the pocket opening, lift, and cut. Then gently pull the loose thread from one end, and in most cases the entire basting line comes away in a single strand. Scissors work in a pinch, but the blade sits flush against the cloth and it is easy to nick a fiber, which on a fine technical fabric can start a small run.
Pull slowly and check both ends
Basting stitches are usually locked or knotted at one or both ends. If the thread resists, do not yank it. Snip the anchor at the opposite corner, then draw the remaining thread out along the opening. Once the pocket is open, run a finger inside to make sure the lining is sitting flat and no stray thread is caught in the seam. That is the whole process.
Leave permanent stitching alone
If you tug a thread and the pocket lining starts to pull or the fabric bunches, stop. That is structural stitching, not basting, and you have found a color-matched seam rather than the temporary one. The temporary stitch releases with almost no resistance. Anything that fights back is meant to stay.
Whether you should even use the back pockets once they're open
Opening the pocket does not obligate you to use it, and on the course there is a strong argument for keeping it empty. A phone, a wallet, or a fistful of tees in the back pocket throws off your posture at address and slaps against you through the swing. Most players keep the essentials in a bag or a front pocket and treat the back pockets as a scorecard slot at most, or leave them flat for the line they give the garment.
Where the open pocket earns its keep is off the course. A well-cut pair of golf shorts now doubles as everyday warm-weather wear, and once you are heading to lunch after the round or running errands, a functional back pocket for a wallet or keys is genuinely useful. Cargo-style options give you even more of that everyday carry, which is where a piece like the cargo shorts - grey '25 comes in — the extra leg pockets keep weight off your back and your seat clean, so you get storage without sacrificing the line the way a stuffed back pocket would. To round out the look for that after-round shift, a leather belt such as the leather belt - black pulls the waistband tidy and reads just as well with a polo as it does with a casual tee.
The takeaway is simple. The sewn-shut pocket is a sign of a garment that was built and shipped with care, not a flaw to complain about. Snip the thread, decide for yourself whether the pocket lives open or empty, and get on with the round. When you are ready to build out the rest of the fit, from shorts to polos to layers, you can explore the full collection at Local Rule.
