Herringbone Chain Necklace – 4 mm Flat Chain, Waterproof, 39 cm + Extender
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Details
Waterproof · Hypoallergenic · 4 mm flat chain
The Smooth Chain You Never Have to Take Off
Most chains tangle, look dull after a few weeks or have to come off before every shower. This flat herringbone necklace lies smooth against your skin, catches the light with every move, and is waterproof and sweatproof, so it can stay on from the morning shower to the evening workout.


Everyday elegance
Flat, smooth and full of shine
A herringbone chain is made of tiny flat links that sit side by side, so the necklace looks like one smooth, liquid ribbon of metal. At 4 mm wide it is easy to notice but never heavy or loud.
The design is timeless and goes with everything: a white T-shirt, a blazer, a summer dress. Wear it on its own or layer it with your other chains for a curated look.
Size and fit
| Size | Measurement |
|---|---|
| Chain length | 39 cm (15 in) |
| Extender | + 5 cm (2 in) |
| Total length | up to 44 cm (17 in) |
| Chain width | 4 mm |
The 5 cm extender lets you choose how close the chain sits. As the photos show, it sits neatly around the base of the neck and the collarbone.

Made to be worn
Shower, swim and gym safe
You do not have to remember to take it off. The chain is stainless steel with an 18k gold-plated PVD coating, and it is waterproof and sweatproof: safe for the shower, the pool and your workout.
- Waterproof and sweatproof: wear it through showers, swims and exercise.
- Kind to sensitive skin: hypoallergenic, lead-free and nickel-free.
- Stainless steel: sturdy everyday metal under the coating.
- Tarnish-free plating: 18k gold plating on the gold tone.
Three finishes
Pick your colour



A gift she will wear every day
Easy to give, easy to love
Looking for a present for your mum, sister or best friend? A simple gold, silver or rose gold chain is a piece she can wear every single day, with everything she owns.
The necklace comes in eco-friendly packaging with a sticker pack included.
Questions people ask
Can I wear it in the shower or at the gym?
Yes. The necklace is waterproof and sweatproof, so it can stay on when you shower, swim or exercise.
Is it OK for sensitive skin?
Yes. It is hypoallergenic, lead-free and nickel-free, and kind to sensitive skin.
How long is it?
The chain is 39 cm (15 in) with a 5 cm (2 in) extender, so you can wear it at any length up to 44 cm (17 in).
Can I layer it with other necklaces?
Yes. The flat 4 mm chain is made for layering with your other necklaces.
Specifications
- Length: 39 cm (15 in) + 5 cm (2 in) extender
- Width: 4 mm
- Material: stainless steel with an 18k gold-plated PVD coating
- Water: waterproof and sweatproof
- Skin: hypoallergenic, lead-free, nickel-free
- Colours: 18k gold, silver or rose gold
What's in the box
- 1 × herringbone necklace with 5 cm extender
- Eco-friendly packaging with a sticker pack


