Free U.S. shipping over $35 Lifetime mechanism guarantee 30-day comfort trial Free U.S. shipping over $35 Lifetime mechanism guarantee 30-day comfort trial

the flex clip

A claw clip you can actually lean back in. Medical-grade flex, 180° compression, lifetime mechanism guarantee.

01 · Quantity Bundle & save
02 · Colour Mix & match
Free U.S. ship $35+ 30-day comfort trial Lifetime warranty
Lifetime mechanism guarantee
Free ship over $35
Designed in Seoul, KR
Lab-tested 5,000+ cycles

Most claw clips were built for a photo. Trinco was built for the rest of the day.

A quiet hazard · §01

The driving. The leaning back. The five-hour shift. The afternoon you forgot it was even there. Hard plastic clips force you forward, dig into your scalp, and — in a car — wedge between your head and the headrest that's supposed to protect it.

We started Trinco with one rule: a clip that doesn't ask you to take it off.

§02 · The four things we engineered

We overthought all four parts of a claw clip.

01 / Material

CloudFlex™ TPE skin

We borrowed from medical tubing, not from costume jewellery. The shell is a medical-grade thermoplastic elastomer — the same family used in IV bags and surgical wraps. It doesn't yellow, doesn't tack, doesn't smell, and holds its memory through 5,000+ compressions.

FIG. 01a TPE OUTER WALL 2.2mm · shore A 50 HOLLOW CAVITY steel spring + teeth 4.4mm Frame cross-section, top view
BPA-freeLatex-freeParaben-free5,000+ cycles
02 / Hold

Surgical-grade torsion spring

Soft on the outside. Honest on the inside. A hardened 304L stainless torsion spring — the same gauge used in laparoscopic clamps — lives inside the flex housing. You get the give of a foam clip with the bite of a metal one.

FIG. 02a 304L STAINLESS · 0.9mm 3.2N consistent hold · 14 coils Internal spring detail
304L stainless3.2N hold force14-coil windingLifetime guarantee
03 / Frame

A frame, not a comb

Most claw clips are a comb on the outside — bare prongs that dig into your scalp. Trinco hides every contact tooth inside a smooth rectangular frame, so the part touching your head is completely flat. All the bite lives inside; the outside stays soft.

FIG. 03a CONVENTIONAL · COMB teeth touch scalp TRINCO · FRAME teeth stay inside Frame vs. comb geometry
Smooth outer faceInternal grip teethSide-squeeze release
04 / Shape

A flat back, on purpose

The back of the clip is intentionally flat. So when your head meets a headrest, a pillow, an office chair — the clip compresses with you instead of digging into your occipital bone. From 11mm at rest to 2mm under load.

FIG. 04a REST · 11mm no load LOAD · 2mm headrest contact 82% compression Compression profile under headrest load
11mm rest2mm compressed180° flex rangeHeadrest-safe
Real people · §04

Worn in the wild.

@jiyeon_r · daily commute
@sophialaine · 8-hour shift
@nneka.writes · long drive
The compression test · §03

Watch it fold flat. Then watch it come back.

A 35-pound load (roughly what your skull does to a headrest at a stop light) flattens the housing to 2mm. Remove the load — and the steel torsion spring returns it to 11mm in under 200ms.

HEADREST OCCIPITAL POINT 11mm 35 LBS
11mmat rest
2mmunder load
200msrebound
5k+cycles tested
Byrdie Who What Wear Allure Refinery29 Into The Gloss Vogue Byrdie Who What Wear Allure Refinery29 Into The Gloss Vogue
What they said · §05

1,247 people leaned back.

"First clip I've owned that doesn't make me sit forward in the car. The flex is real — not marketing."

Priya M. · verified buyer · Linen

"I'm an ER nurse. On my feet for 12 hours. This is the only clip that lasts the full shift and doesn't leave a mark."

Dana K. · verified buyer · Ink

"Ordered four. Gave two away. Kept two. The Garnet is stunning in person."

Amara T. · verified buyer · Garnet

"I have migraines. Literally every other clip triggers them. This one doesn't. That says it all."

Sasha L. · verified buyer · Camel

"I was sceptical. Soft + strong sounds like a contradiction. It's not. I wore it to a 3-hour meeting and forgot about it completely."

Ji-won P. · verified buyer · Linen
The numbers · §06

After 90 days on-market — the data.

94%
said they wore it longer than any clip before
n=847 · 30-day survey
4.9★
average rating across all colourways
1,247 verified reviews
0
mechanism failures in first 90 days
lifetime guarantee active
62%
of buyers returned to buy a second set
within 60 days of first order
How it stacks up · §07

The honest comparison.

Scroll to compare
Feature Trinco Flex Clip Luxury acetate clip Standard plastic clip
Flex / compressibility 180°
Headrest-safe profile
Medical-grade material TPE
Teeth inside frame
Lifetime mechanism guarantee
Price per clip$12.50 (4-pk)$30–60$3–10
Min-jun Lee, Founder of Trinco
A word from the founder · §08
"I designed this clip in a car park. I'd just had a minor fender-bender — my instinct was to brace, but the clip dug so hard into my occipital bone that I couldn't lean back. That shouldn't be a trade-off."
Min-jun Lee
Founder & head of product · Trinco · Seoul
Common questions · §09

Everything you probably want to know.

Yes. The 304L stainless torsion spring provides 3.2N of hold force — equivalent to a standard hard-plastic clip. The soft exterior doesn't reduce holding power; the grip teeth are entirely internal and unaffected by the flex housing.
Side-squeeze release — same motion as any claw clip. Press the two side ridges inward, place in hair, release. The soft frame means the squeeze is noticeably less effortful than hard plastic.
Yes. CloudFlex™ TPE is BPA-free, latex-free, and paraben-free. It's the same family of materials used in medical-grade IV tubing. We do recommend a standard patch test if you have a known TPE sensitivity, which is rare.
The spring mechanism — the part that gives and returns. If the spring ever loses tension or breaks under normal use, we replace the clip, no questions. The guarantee doesn't cover cosmetic wear, loss, or damage from heat (e.g. leaving it in a hot car).
That's literally what it was designed for. The flat-back profile compresses from 11mm to 2mm under a standard 35-lb headrest contact force. You can lean back fully without any pressure point or repositioning.
Wipe with a damp cloth. Mild soap is fine. Don't boil, microwave, or leave in direct sun for extended periods — extreme heat can temporarily affect the TPE's memory. It's not designed for swimming or saltwater.
30-day comfort trial. If the clip doesn't work for your hair type or head shape, email us and we'll sort a return or exchange — no restocking fee. We want you to actually use it.
Slightly — all four are matte finishes, which tend to look more refined in person than on screen. Linen is warm ivory (not stark white), Camel is a muted warm sand, Garnet is a deep cherry-wine, and Ink is a near-black with a very slight warm undertone.
§10 · Ready?

The last claw clip you'll need to think about.

Lifetime mechanism guarantee. 30-day comfort trial. Free U.S. shipping over $35. Four matte colourways.

Lifetime mechanism guarantee · designed in Seoul
the flex clip 4 clips · $50