Products – Big. Brain. Trust.

Toggle accessibility mode (a)
Go to homepage (h)
Go to navigation (n)
Go to search (s)
Go to content (c)
Go to footer (f)

View catalog Search

Search

Search

Search results

CUSTOMER SERVICE
PL (PLN zł) Menu
Menu
- English
- Polski
Sign in Sign in
Login
Login

Email*

Password* Toon Hide Forgot your password?

Don't have an account yet?
Create account
Cart

ALL PRODUCTS
JAN CZ
Madame Curie
T-shirts
Contact Us
View more menu items

CUSTOMER SERVICE
PL (PLN zł) Menu
Menu
- English
- Polski

Homepage
Products

Products

20 products

Model
Product

Filter

Add to cart

Copernicus Unisex classic tee
59,99 zł
Add to cart

Czochralski — Kids Cotton Tee (Full Print / for kids)
106,00 zł
Add to cart

Jan CZ Jigsaw puzzle with tin
69,99 zł
Add to cart

Jan CZ Spiral notebook
59,99 zł
Add to cart

Jan CZ superhero postcard
9,99 zł
Add to cart

JAN CZ. Bubble-Free Sticker
12,99 zł
Add to cart

JAN CZ. — Snapback Hat (Silicon Pioneer Edition)
99,00 zł
Add to cart

Jan CZ: Silicon Icon — Embroidered Beanie
69,00 zł
Add to cart

Jan CZ: Silicon Pioneer — Cotton T-Shirt
109,00 zł
Add to cart

Jan Czochralski - framed poster
119,00 zł
Add to cart

Jan Czochralski Unisex classic tee
69,00 zł
Add to cart

Jan Czochralski's cinematic, superhero-inspired postcard
9,99 zł

1
2
Next

Filter

Your current filtersFilterRemove all filters

Dostępność In stock
Remove all filters

Sort by

Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

Dostępność

In stock

PriceCena

From zł to zł

Show products (20)

Newsletter

Never miss any news and be the first to know about sale and offers.

Sign up for our newsletter

Check this first please.

Social media

follow us :)

facebook
Instagram
Translation missing: en.socials.spotify
TikTok
YouTube

Size chart

About us

Contact us

Terms of Service

Refund Policy

Privacy Policy

Shipping Policy

Contact Information

© 2026 Big. Brain. Trust., Powered by Shopify

PL (PLN zł) Menu PL (PLN zł) Menu
Menu Menu
- English
- Polski

Login

Email*

Password* Toon Hide Forgot your password?

Don't have an account yet?
Create account

Shop the look

Sign up for our newsletter

Subscribe to our emails

Email*

Our site uses cookies. By clicking on accept you agree with our voorwaarden and privacy policy.