Fitlens
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[ FITLENS / SEED TEASER 2026 ]
01 / 11
Waitlist open · Q1 2026

Fitlens

Measure once.
Fit everywhere.

The fit layer for global eyewear commerce.

round
Seed · €1.2M
stage
Pre-launch
based
Warsaw, PL
contact
hello@fitlens.online
Aviator
142mm
Round
138mm
Wayfarer
150mm
[W] 142mm
[ slide_01 ]
[ THE PROBLEM ]
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Frame width is the number one cause of online eyewear returns.

Every eyewear retailer knows this. No one solves it cross-store.

[ root cause ]
73%
of online eyewear returns tied to frame width
14 pairs
average tried before finding the right fit
$47
average cost per return absorbed by retailers
every site
the pain exists everywhere online glasses are sold
[ slide_02 ]
[ WHY NOW ]
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Three market shifts converged in the last 24 months.

01
Tech reached production

MediaPipe Face Mesh now runs 478 facial landmarks in any browser. ±1mm accuracy without specialized hardware.

02
Consumers accept face scanning

Warby Parker, Lenskart, and Zenni proved the behavior at scale. Face-based sizing is no longer novel.

03
Market crossed the threshold

Online eyewear hit $35B globally, growing 8.5% annually. Category leaders exist. The cross-store layer does not.

// Honey did this for coupons. We do it for fit.
[ slide_03 ]
[ THE SOLUTION ]
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A browser extension that measures your face once and filters fitting eyewear across every online store.

  • Card-sized calibration reference
  • AI face width measurement, ±1mm
  • Stored locally, zero cloud
  • Real-time fit indicators on product pages
  • Works on 40+ retailers at launch
eyewear-store.com / frames
[ fitlens active ]
fits
fits
recommended · 141mm
too wide
fits
too wide
fits
wooletwarby parkerray-banmister spexlenskartzennieyebuydirect+34 more
[ slide_04 ]
[ HOW IT WORKS ]
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Measure once. Fit everywhere. In three steps.

01 / MEASURE
8 seconds, one time

Hold any plastic card to your face. AI calibrates and calculates exact face width in millimeters.

// MediaPipe Face Mesh
02 / SAVE
local
Lives in your browser

Measurement stored on-device. Nothing uploads. Nothing syncs. GDPR compliant by design.

// chrome.storage.local
03 / SHOP
Works everywhere

Open any eyewear site. Fitlens highlights what fits and hides what does not. Forever.

// 40+ retailers
face_profile.persists → across_sessions → across_stores → across_years
[ slide_05 ]
[ MARKET SIZE ]
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$165B global eyewear opportunity.

TAM
SAM
SOM
TAM · $165B · global eyewearSAM · $35B · online · +8.5% CAGRbeachhead · US + EU · Rx buyers
850M
prescription eyewear users worldwide
280M
buy eyewear online annually
+$400B
adjacent fit categories (watches, hats, rings, shoes)
// Fitlens expands from eyewear into every category with a fit problem and an online workflow.
[ slide_06 ]
[ COMPETITIVE LANDSCAPE ]
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Four categories. None solve cross-store fit.

// vertical brands
Warby Parker · Lenskart · Zenni

Closed catalog. Only their frames, only their site.

// b2b sdks
Banuba · Fittingbox · Perfect Corp

Sell to retailers, not to consumers. No persistent profile.

// try-on apps
FrameStyler · VirTry

Style focus. No measurement, no fit, no memory.

// price comparison
Ceneo · Skąpiec

No fit data. Compares price, ignores the body.

Fitlens
// cross-store · persistent profile · transaction layer

Owns the white space between the other four.

[ slide_07 ]
[ BUSINESS MODEL ]
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Four revenue streams. One compounding moat.

01 / AFFILIATE
6-12%
of sale price

Commission on every retailer partnership. Primary stream at scale.

02 / SPONSORED
featured
placement

Brands pay for priority placement in fit results.

03 / SDK
white-label
license

Retailers license the measurement layer for their own sites.

04 / DATA
insights
reports

Anonymous fit distribution and SKU-gap reports for manufacturers.

The more users measure, the stronger the dataset - the deeper the moat.

// network effect compounds with every install
[ slide_08 ]
[ THE TEAM ]
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Operators. Not first-time founders.

// founder & ceo
Marek Cieśla
Founder, Eyewear Brand Operator

4 years building Woolet, an eyewear brand engineered for wide faces. Ran 46 crowdfunding campaigns through JAY-23 agency, raising over $1.2M. Direct domain expertise: the original problem Fitlens solves is the one I lived for a decade.

experience [+-] 04yrs · eyewear
// technical co-founder
Maciej
Full-stack Engineer, Rapid Build Specialist

Full-stack engineer specialized in building shipping products fast. Tech lead on every Fitlens system from MVP to scale - extension, measurement pipeline, retailer integrations, SDK.

velocity [+-] high · shipping
// eyewear industry knowledge + proven distribution + shipping velocity
[ slide_09 ]
[ VISION ]
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Eyewear is the beachhead.

Frame width is measurable, standardized, and solves a real pain documented across every online eyewear retailer.

Next: watches (wrist), hats (head), rings (finger), shoes (foot). Every apparel category with a fit problem and an online shopping workflow is a potential Fitlens expansion.

the_real_moat → a persistent, biometric-free fit profile that lives in the browser

Measure once. Fit everywhere. Applies to everything you buy online.

[ slide_10 ]
[ CONTACT ]
11 / 11

Let's talk.

We are sharing Fitlens with a select group of investors before public launch.

  • Want to see a live demo
  • Want the full deck and financial model
  • Want to discuss the seed round
[ founder ]
Marek Cieśla
Founder & CEO, Fitlens
hello@fitlens.onlinefitlens.online
[ end of deck · 11 / 11 · v0.1 · 2026 ]
[ slide_11 ]