Invisible Concealed Zips – Heavy Duty Size 5

Our Size 5 invisible (concealed) zips offer the perfect balance of strength and elegance. Designed for garments requiring a sturdier zipper, such as bridal, prom and formalwear, this heavier duty style provides reliable support while still remaining fully hidden in the seam.

The Size 5 coil is stronger and more durable than traditional Size 3 invisible zippers, making it ideal for fitted gowns, thicker fabrics, structured garments, costumes and professional dressmaking.

Available in a carefully selected colour range to complement bridal and occasion fabrics, including white, ivory, cream, beige, grey tones, teal and dusky sage green.

size 5 heavy duty invisible or concealed zipper in white
size 5 heavy duty invisible or concealed zipper in white

White Invisible / Concealed Zip – Size 5 Heavy Duty

  • 4 Options
£1.90 GBP 
 - £3.95
size 5 heavy duty invisible or concealed zipper in black
size 5 heavy duty invisible or concealed zipper in black

Black Invisible / Concealed Zip – Size 5 Heavy Duty

  • 4 Options
£1.90 GBP 
 - £3.95

Concealed invisible zippers

These size 5 heavy duty zippers are an excellent quality zipper where you need a stronger zip. Wedding dresses, prom dresses, formal wear, cushions. Also available in continuous style here
Two invisible / concealed zippers in ivory color, showing the slider and the teeth.

Ivory Invisible / Concealed Zip – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
teal turquoise heavy duty invisible concealed zip in size 5
teal turquoise heavy duty invisible concealed zip in size 5

Teal Invisible / Concealed Zip – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
Off white or light yellow heavy duty no 5 invisible concealed zipper
Off White/Light Yellow Ivory Invisible / Concealed Zip – Size 5 Heavy Duty

Off White/Light Yellow Ivory Invisible / Concealed Zip – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
Beige invisible heavy duty zippers
Beige invisible heavy duty zippers

Beige Invisible / Concealed Zip – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
Light grey invisible zipper in the heavy duty no 5 range
Light grey invisible zipper in the heavy duty no 5 range

Light Grey Invisible / Concealed Zip – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
cream coloured invislble zippers in the heavy duty size 5 range
Various colours of #5 invisible zippers concealed heavy duty

Cream Invisible / Concealed Zip – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
Dark grey invisible concealed zipper in heavy duty size 5
Dark grey invisible concealed zipper in heavy duty size 5

Dark Grey Invisible / Concealed Zip – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
Dusky Sage Green invisible concealed zipper in heavy duty size 5
Dusky Sage Green invisible concealed zipper in heavy duty size 5

Invisible / Concealed Zip – Dusky Sage Green – Size 5 Heavy Duty

  • 3 Options
£1.90 GBP 
 - £3.60
Showing 1 of 1

FAQ


A Size 5 invisible zip is a heavier-duty concealed zip designed for garments that need extra strength. It offers the same hidden finish as a standard invisible zip but with a stronger coil, making it suitable for more structured or heavier projects.

Yes. Size 5 invisible zips have a thicker, more durable coil than Size 3. They are better suited to fitted garments, thicker fabrics, or projects where extra durability is needed.

Yes. When inserted correctly using an invisible zip foot, the zip tape and coil sit neatly within the seam, creating a clean, concealed finish.

Absolutely. Many dressmakers choose Size 5 invisible zips for garments that place more strain on the zip, without wanting a visible fastening.

Yes. Size 5 invisible zip tape is available by the metre, allowing you to cut custom lengths and attach sliders as needed. This is ideal for bulk sewing or multiple projects.

Sliders are colour-matched as closely as possible to the tape. Minor variations can occur due to manufacturing and screen display differences.

For best results, we recommend using an invisible zip foot. This allows the machine needle to stitch close to the coil while keeping the zip concealed.

For full postage information, please see our Shipping & Delivery page

If you like our #5 pre made zippers, perhaps you would like our continuous zippers in the #5 range

Continuous zippers are and extremely economic way of purchasing zippers in bulk. Make the size you need for your product

Shop here
beige long chain continuous invisible zipper tape and sliders
10 meters of beige long chain continuous invisible zipper tape and sliders
5 metres of beige long chain continuous invisible zipper tape and sliders
1m of beige long chain continuous invisible zipper tape and sliders

Beige Heavy Duty #5 Invisible Continuous Zipper Tape

  • 6 Options
£3.50 GBP 
 - £15.50
heavy duty size 5 continuous invisible zipper tape
heavy duty size 5 continuous invisible zipper tape sliders
heavy duty size 5 continuous invisible zipper tape
heavy duty size 5 continuous invisible zipper tape

Black Heavy Duty #5 Invisible Continuous Zipper Tape

  • 6 Options
£3.50 GBP 
 - £15.50
Light grey continuous invisible continuous zipper in size 5
10 metres of Light grey continuous invisible continuous zipper in size 5
5 metres of Light grey continuous invisible continuous zipper in size 5
1 metre of Light grey continuous invisible continuous zipper in size 5

Light Grey Heavy Duty #5 Invisible Continuous Zipper Tape

  • 6 Options
£3.50 GBP 
 - £15.50

Recently viewed