The maker’s edit · YKK zips in New Zealand
The right zip.
A better finish.
A dress that closes without a ripple. A favourite jacket back in service. A cushion cover that comes off easily. The zip is a small choice that changes how the whole project works.
You can spend hours choosing fabric and only a minute choosing the zip. Yet that little fastening is something you will use every time you wear the garment.
It affects the line of a seam, the way a jacket opens and how comfortably you can get into a fitted dress. Choose it early and the sewing becomes easier to plan: the opening, foot, seam allowance and finishing method can all work together.
Looking for YKK zips in NZ? Direct Sewing’s YKK collection includes invisible zips in 23, 40 and 60cm; dress zips in 18, 25 and 50cm; trouser zips in 15, 18 and 20cm; and VISLON open-end zips in 50, 60, 65 and 75cm. Start with the opening your project needs, then choose the length and colour.
Three letters you’ve probably worn.
Look closely at the pull on a jacket or a pair of trousers and you may spot YKK. The initials come from Yoshida Kogyo Kabushikikaisha, the company’s former name. Its fastening business began in Japan in 1934, founded by Tadao Yoshida. YKK explains the name’s origins.
There is a local chapter, too: YKK’s company history records the establishment of its first overseas subsidiary in New Zealand in 1959. That is a lovely connection for makers here, even though a brand’s history does not tell you where an individual zip was manufactured. Explore YKK’s history.
For your project, the useful question is which YKK fastening fits the job. A fine invisible zip and a chunky jacket zip solve quite different problems. The brand is the starting point; the construction details decide the match.
Does it need to disappear,
or come completely apart?
Before comparing shades, look at the bottom of the opening. A closed-end zip stays joined at its base. An open-end, or separating, zip lets the two sides come apart. That distinction matters more than whether the colour is perfect.
Closed-end
Think dress backs, skirt seams, trouser flies and many cushion covers. The zip opens a section of the project while the fabric below remains joined.
Open-end
Think jacket and coat fronts. The insertion pin releases from the box at the base, allowing the garment to open fully.
Invisible zips
An invisible zip is built so its coil sits behind the tape and the closed opening resembles a seam. The small pull is the visible finishing detail. It suits designs where you want the fabric and shaping to take the attention.
Start here for a dress or skirt pattern that specifies an invisible zip. The installation method differs from a conventional dress zip; putting a standard zip in backwards will not produce the same result. See YKK’s coil and concealed-zip comparison.
Picture the project: a linen dress with an uninterrupted back seam, or a skirt with a neat side opening.
Dress zips
A conventional closed-end dress zip is a useful choice when your instructions call for a centred or lapped insertion. The seam treatment determines how much of the fastening shows.
Direct Sewing lists 18, 25 and 50cm lengths. Think skirts, dresses and suitable cushion covers or small pouches. A longer listing gives you another opening length to work with; it does not automatically mean a heavier or stronger zip.
Picture the project: a favourite print made into a removable cushion cover, with the zip tucked neatly beneath the fabric.
Trouser zips
Trouser construction has its own demands: a fly extension, shield, waistband and top closure need to meet in the right places. Choose the zip around that arrangement and the pattern’s specified length.
The range includes 15, 18 and 20cm trouser zips. The 15cm and 20cm listings specify nickel teeth. Check the individual product details when the teeth finish matters, especially when matching an existing garment.
Picture the project: tailored shorts or trousers with a tidy fly front and a waistband that meets cleanly.
VISLON open-end zips
VISLON is YKK’s moulded plastic tooth family. Its individual teeth look different from a continuous fine coil. YKK describes the elements as injection-moulded plastic, including materials such as polyacetal. Read YKK’s VISLON description.
Direct Sewing’s open-end options suit jacket, coat, vest and hoodie projects that need complete separation. The 50, 60 and 75cm listings specify No. 5; a separate 65cm VISLON open-end option is also listed. Match the exact length and specification your project requires.
Picture the project: a navy jacket with a clean centre front, ready to layer over your everyday clothes.
Measure the fastening.
Leave the extra tape out.
The tape extends beyond the working parts so there is material to sew into the garment. Measuring from one cut tape end to the other can make you order a zip that is too long.
Zip length ≠ total tape length
For a new make
Use the zip length in your pattern’s supply list. Check how the top sits below a waistband, facing or neckline, and where the opening ends.
For a replacement
Lay the old zip flat and compare its working length and construction with the replacement. Record the measurement before unpicking it.
YKK’s standard closed-end measurement runs from the top of the closed slider to the end of the bottom stop. For an open-end zip, it runs to the end of the box. Some designs use a different top reference point; consult YKK’s illustrated measuring guide for the exact configuration.
A quick guide to the lengths at Direct Sewing
Use this as a shopping map, then confirm the type, colour and availability on the individual listing. The lengths below are centimetres.
| Zip family | Lengths listed | Useful starting point |
|---|---|---|
| Invisible | 23 · 40 · 60cm | Discreet dress and skirt seams |
| Dress | 18 · 25 · 50cm | Centred or lapped garment openings; suitable cushion covers |
| Trouser | 15 · 18 · 20cm | Fly-front trousers and shorts |
| VISLON open-end | 50 · 60 · 65 · 75cm | Separating jacket, coat and vest fronts |
What does “No. 5” mean?
The number identifies a zipper size category, separate from its length. A No. 5 zip can be supplied in different lengths. It does not mean “5cm long”, and the number alone is not enough to match a replacement slider or another zipper half.
Can you shorten a zip?
Some zips can be shortened using a method suited to their construction, with a secure new stop. Choose the correct listed length where possible, and follow your pattern or a suitable alteration method before cutting.
A separating zip needs its bottom pin and box to keep working. Treating it like a closed-end zip and cutting away that assembly will remove the feature you bought it for. If you are unsure which part can be altered, ask us about the exact zip and project first.
Blend it into the seam.
Or let it be the detail.
There are two satisfying directions: a zip that quietly belongs to the fabric, or a contrast that makes the fastening part of the design.
A few colours to start the conversation
These are actual catalogue images. Compare the tape, coil and pull together; the part you see on the finished garment depends on the insertion.
A warm neutral dress-zip option.
A bright accent for a dress zip.
A classic VISLON option.
A soft colour in the invisible range.
For a printed fabric, decide which colour should dominate at the opening. Lay a few options against the cloth in daylight. On a jacket with exposed teeth, consider the full line of colour down the front; on an invisible insertion, pay particular attention to the small pull.
Keep the YKK colour number with your notes. The product pages pair colour names with codes, and names can differ between zip families. Recording both makes a later comparison easier than remembering “the beige one”.
Direct Sewing links to the YKK Global Colour Card (PDF). Use it as a reference alongside the options on your chosen listing. Screen settings, lighting and materials affect how colour appears, so a digital image cannot promise an exact fabric match.
The range of shades also differs by zip type and length. Select those first, then check the colour options available for that particular product.
Choose for the way it opens.
Finish for the way it looks.
The neat finish begins
before the first stitch.
A careful trial takes less time than unpicking a finished zip. Set the garment pieces beside you, read the insertion sequence and make a small sample if the fabric or technique is new.
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Plan the opening as part of the garment.
Check the seam allowance, top closure, facings and lining. Mark matching points across the opening, such as a waist seam or a jacket panel join. Decide where the top of the zip should sit before attaching either side.
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Prepare and support the fabric.
Press the seam area as appropriate for the fabric. Use interfacing or another support where your pattern calls for it. On a soft or stretchy fabric, test the proposed support on an offcut to see whether it prevents distortion without making the area stiff.
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Use a foot and needle that suit the job.
A conventional zipper foot gives access beside the fastening. A compatible invisible-zip foot helps guide the concealed coil. Check the foot’s fit for your machine and choose the needle for the fabric and layers. Explore domestic machine feet if your setup needs a different attachment.
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Baste, close and compare.
Hold the tapes in position using a method appropriate to the fabric, then close the zip and compare your marks. Check that the top edges meet and that a waist seam or horizontal stripe lines up. Correct the placement while it is still easy to change.
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Keep the fabric relaxed as you sew.
Support the weight of the garment instead of pulling it through the machine. Guide the tape and cloth together. Keep the needle clear of teeth, stops and the slider; use the handwheel to check clearance near bulky hardware.
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Test the finished opening.
Work the slider gently, check the lining stays clear and inspect the seam from both sides. Finish the surrounding seams and press according to the fabric and zip’s care requirements. Let the project lie flat before deciding whether anything needs adjusting.
Before replacing the zip,
read the one you have.
A worn fastening does not always mean the whole garment is finished. The most useful repair starts by understanding the original construction.
Before you unpick
- Photograph both sides of the zip, including the bottom fitting.
- Note whether the sides separate and whether there is one slider or more.
- Measure the working length and record any readable markings.
- Check the teeth type, tape width, top finish and lining attachment.
- Mark seam intersections so the replacement can line up.
Before you order
A matching colour and length are only part of the decision. A jacket may need a different opening direction, a particular bottom fitting or two-way operation.
Do not assume a new YKK half or slider will pair with the old one simply because the name or size number matches. If compatibility is uncertain, identify the full specification or plan a complete zip replacement.
Contact Direct Sewing with the project details and measurements when you need help narrowing down a listed option.
A few habits that help a zip last
Guide the pull rather than forcing it. If fabric catches, stop and gently free it. On a separating zip, seat the pin fully in the bottom box before pulling upward.
For washable garments, close the zip before machine washing and follow the garment’s care label. Protect the fastening when pressing and check its heat requirements; direct heat on the teeth or slider can cause damage. YKK’s care and operating guide explains these points in more detail.
YKK zip questions, answered.
Where can I buy YKK zips in New Zealand?
Direct Sewing’s YKK zips collection brings together invisible, dress, trouser and VISLON open-end options. Choose the type and length, then check the colour selection and current availability on the product page.
What is the difference between an invisible zip and a dress zip?
An invisible zip has a concealed coil and is installed to resemble a seam. A conventional dress zip uses a different insertion, such as centred or lapped. Follow the zip type specified in your pattern.
Which YKK zip should I choose for a jacket?
For a jacket that must separate fully at the front, start with a VISLON open-end option in the required length. Also confirm the size, opening arrangement and any special requirements of the original garment or pattern.
What lengths are in the Direct Sewing range?
Invisible: 23, 40 and 60cm. Dress: 18, 25 and 50cm. Trouser: 15, 18 and 20cm. VISLON open-end: 50, 60, 65 and 75cm. The linked product pages are the place to check the current selection.
Does No. 5 mean the zip is 5cm long?
No. It is a zipper size category, separate from the length. Read both parts of the specification. A No. 5 VISLON zip and a No. 5 coil zip should not be assumed to use interchangeable components.
Are the VISLON jacket zips waterproof?
These listings describe standard open-end jacket zips, not waterproof fastenings. For a rainwear or technical project, use the exact fastening and seam construction specified for that design; a YKK or VISLON name alone does not establish waterproof performance.
Can I use a dress zip in a cushion cover?
Yes, where the cover design calls for a suitable closed-end zip. Check the opening length and insertion method, and allow enough access to remove the cushion insert comfortably.
Will the same YKK colour code look identical in every zip type?
A code helps identify the intended shade, but tape, teeth, finish and lighting can affect its appearance. Compare a physical sample when an exact match matters, and check the colour options for your chosen zip family.
Do I need an industrial machine to sew in a zip?
The zip alone does not determine the machine you need. Many garment insertions can be sewn on a suitable domestic machine with the right foot, needle and technique. Check your machine’s guidance and test the complete fabric layers first.
Can I buy a longer zip and cut it down?
Only use a shortening method suited to that zip’s construction, including an appropriate new stop. Preserve the bottom pin and box on a separating zip. Choosing the right listed length is the simpler starting point.
One small choice. A project you’ll keep using.
Give the finishing detail
the thought it deserves.
Choose the opening first. Match the length. Find the colour that belongs. Then enjoy the moment your project closes neatly for the first time.
Explore YKK zips at Direct Sewing →