From 50 sets up, made to the quality you expect. We reply to quote requests within 4 hours on average, and just inquire and we'll send recommended products, pricing, and case studies. What you receive drops straight into your approval deck.
Welcome kits, conferences, expos, award ceremonies, executive gifts. A dedicated manager handles quoting, drafts, production, and shipping, all the way through, leaving no gaps.
What ultimately decides merch satisfaction is that last touch of quality. We reproduce your logo's shape and your brand's own colors exactly as the draft, and inspect print sharpness and finish thoroughly before we produce.
Within 4 hours of your inquiry, one dedicated manager owns everything from the first consultation through quoting, production, and delivery. On reorders, we reproduce the same quality, fast, with no tedious re-explaining.
From 50-set small runs for startups to 50,000 units for large events, we handle it all. We propose the most reasonable pricing and the optimal timeline to fit your project's scale and budget.
Solutions
From welcome kits and large conferences to VIP gifts, a merch lineup to elevate your brand's key moments.
Events & Campaigns
Launch, pop-up, and festival promo merch
IP & License
Character and idol merch fans love
Conferences & Expos
Expo merch on your event schedule
Welcome Kit
Welcome kits that build belonging
Premium Gift
Premium keepsakes for executives and VIPs
Internal Events
Group tees and keepsakes for internal events
Public & Education
Keepsakes for societies and public agencies
Blockchain & Web3
Merch for global Web3 communities
Best Goods
Introducing this week's most-loved goods.
Products
Browse our key products first. Even small runs of 50 are made in-house.
Color Changing Glass Cup
8.07 USD
Clear Reusable Tumbler
5.93 USD
Reusable PP Tumbler
4.62 USD
Cup Holder
0.21 USD
Windbreaker Jacket
27.52 USD
Custom Wristband
Quote on request
Indoor Slippers
16.07 USD
Short Sleeve T-Shirt
12.69 USD
Portfolio
Explore our merch portfolio crafted with a wide range of brands.
Another Level
A rush order with the event date already fixed. From sample check to on-site arrival in four business days.
Hashed
Ahead of the KBW conference, Hashed teamed up with O-SEAN for the first time to produce 550 pieces of team apparel.
Smilegate
Ahead of its game IP booth at AGF (Anime X Game Festival) in December 2025, game company Smilegate partnered with O-SEAN to produce 8,380 paper holders, stickers, and acrylic keyrings to hand out to visiting fans.
Tremolo
An event merch case that held a 10,000-unit run to the promised date while designing cooling & UV-protection functional fabric and packaging together.
Insights
From merch no one's made before to merch trends, the record O-SEAN keeps.
Trusted by
With a licensed run, my biggest fear was the character colors coming out different from the screen. They pulled a physical sample and matched the color first, which really put me at ease. The units arrived in time for our G-Star booth, so I'll likely reach out again for the next title.
Not many places will take a run of 50, but they handled the small batch happily. They proposed the box and the contents with us, and on start-up morning a kit was sitting on every desk. We're going with the same setup for the next intake.
Promo goods for our dealerships meant a lot to juggle, and it's surprisingly hard to find a place that handles it all in one stop. I handed over a logo and they took care of the design drafts, fitting product suggestions, and shipping. The itemized PDF quote went straight into our approval, too.
We threw it at them with only 3 weeks to the event, yet they built the schedule backward from the deadline. Splitting it into VIP and visitor versions to fit the budget was a big help too.
At only 100 units the per-piece price wasn't dirt cheap, sure. But they sent the quote right back, so my report up the chain was quick. The finish came out clean, and the quality left me really happy.
We placed it as a single order, but it had to be split out to several field offices. They matched the quantities for each destination and shipped them separately, so there was far less for us to handle. The event dates differed from region to region, and they worked around those schedules too.
From startups to global IPs, brands that came back to us for the same reason
How it works
Just leave an inquiry. We share every step of production, transparently and fast.
Just tell us the merch type, quantity, and event date. Even a light one-line concept is fine.
We send a quote reflecting the best pricing.
Pre-checking quality with design drafts and mockups.
After production, our specialists inspect every piece meticulously.
Securely packed and shipped wherever you need it, with individual or overseas delivery if required.
Not here? Ask your manager directly. We reply within 4 hours on average.
Lab notes, the merch that made it through, and a preview of next season's plans. We'll round it up and send it your way.
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A dedicated manager stays with you, dependably, all the way. We reply to quote requests within 4 hours on average.
