Hydrogen — Spectra Hoodie

Hydrogen's Balmer series — four lines at their true wavelengths, the signature an atom writes as it cools. Printed front-only on a heavyweight black Lane Seven French Terry hoodie.

Spectra. The simplest atom.

Care is simple: cold wash, inside out, hang dry. We count durability in washes, not adjectives — and if anything about your order isn't right, reach us through the contact form. A real person answers, and we make it right.

Buying it as a gift? If they're into physics, chemistry, or astronomy, they'll read it instantly — to everyone else it's simply a clean, well-made hoodie.