FIRST ONESIE STORE IN THE WORLD! BY 1 Z KING AT ONE MARKET PLAZA
WE ARE OPEN TUES, WED, THURS 10AM-4PM

FEATURED ONESIE FOR 2025

ONESIE KING MUSHROOM ACID WASHED ONESIE

Handmade in San Francisco. One-of-a-kind. Unisex. Sexy AF. Made with Mushrooms. Customizable by Local Artists.

This isn’t just a onesie. It’s a revolution in denim. The Mushroom Acid-Washed Onesie by The Onesie King is handmade in San Francisco, naturally dyed with wild-foraged mushrooms, and acid-washed to earthy perfection.

Crafted from rare deadstock flocked denim with just the right amount of stretch, each piece is completely unique — no two washes, fades, or fits are ever alike. This gender-free jumpsuit hugs in all the right places, feels broken-in from day one, and turns heads from farmers markets to full moon raves.

ONESIE KING COLLECTION

CUSTOMIZED YOUR ONESIE KING ONESIE

Personalize Your Onesie with Our Resident Artists

Custom Art, Just for You — Only from The Onesie King

Take your Onesie King onesie to the next level with personalized customization by our curated team of resident artists based in San Francisco.

From mushroom-inspired illustrations to hand-painted florals, stud work, crystals, patches, and textile embroidery, our artists can transform your onesie into a one-of-one masterpiece that reflects your unique style, story, and spirit.

What You Can Add:

Mushroom + Mycelium Designs
Hand-Painted Artwork
Botanical & Floral Patterns
Studs, Crystals, Patches, and Embroidery
Your Custom Vision — Realized

Why Customize?

– Turn your onesie into a wearable art piece
– All work done by Bay Area creatives
– No two designs ever alike

onesie king store one market San Francisco first onesie store in San Francisco tues -wed - thurs 9am-4pm