Find clothes that fit — every time.

No measuring. No guesswork. No surprises.

Join 1000+ early users. No spam, ever.

how it works

Your sizes → your measurements

Add a few favorites

Add 1–3 pieces you already own. Sies pulls the exact measurements automatically.

Sit back while Sies does the math

Sies builds your fit profile from size guides and spec sheets — no measuring tape needed.

Shop with confidence

See your recommended size and a short "why it fits" note. No guesswork, just clothes that feel made for you.

Your fit profile

Your closet, brought to life

Every piece you add makes your profile smarter.

Everything in one place.

Your sizes, your measurements, your shopping.

Your Closet
Your Profile
Your Feed

“I used to order two sizes every time I shopped for a dress online. With Sies, I have a much better idea of how each size will fit.”

— Emily, NYC

FAQ

Do I need to measure myself?
No. Sies learns your fit from the clothes you already own. Snap a couple tag photos or paste product links and we’ll extract measurements automatically.
Are my sizes public?
No. Sizes and measurements are private by default. You can share with Close Friends; creators can opt-in to share.
Will this work across different brands?
Yes. We standardize brand size guides and map them to your fit profile, so an XS in one brand can be compared to an S in another.
What if I like different fits?
Choose a fit zone – sleek, perfect, or relaxed – and Sies adapts by garment type. You’ll also see a short “why it fits” explanation on each item.
How is my data used?
Only to improve your recommendations. We don’t sell personal data. You can remove your info anytime from Settings.

Be first to try Sies

Join the waitlist for early access and updates.

No spam – opt out anytime.