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A 12 Diamond press printing team shirts at a Long Island lacrosse tournament

Your team's gear.Printed where you play.

On-site apparel printed live at Long Island tournaments, and 24/7 team stores for every club, school and camp we work with.

Find your store

Printed in-house on Long Island. Ships in 1–2 days.

Find your event

Lacrosse first, and everything else Long Island plays.

A club team wearing matching 12 Diamond warmups on the sideline

Your gear. Your way.

  • The brands you already wear

    Under Armour, Adidas, Champion, Next Level, Richardson and more — one catalog, one order.

  • Hundreds of designs, or your own

    Start from a template in your colors, add names and numbers, or send us your artwork.

  • Decorated on Long Island

    We print it ourselves. Nothing gets brokered out and nothing waits on a third party.

  • Shipped straight to your door

    Every order ships direct. No sorting boxes at practice.

Start a Store
Events served a year
120+Events served a year
Teams and programs outfitted
300+Teams and programs outfitted
Items printed
250k+Items printed
Years in business
15Years in business

Brands we stock

  • Under Armour
  • Adidas
  • Champion
  • Next Level
  • Richardson
  • Badger
  • Port & Company
  • Augusta Sportswear

What programs say

  • They set our store up in a day and every parent ordered straight from their phone. I never touched a spreadsheet.

    Placeholder NameTeam Manager, Placeholder Club
  • Printing on site at our tournament sold out twice. Kids wore the shirt home the same day they won in it.

    Placeholder NameTournament Director, Placeholder Event
  • Same colors, same logo, every season. Our gear finally looks like one program instead of six teams.

    Placeholder NameProgram Director, Placeholder Program

Why programs stay

  • Your logo, your colors

    Set the kit once and every design in the store is built from it.

  • The widest range we can print

    Screen print, DTF, embroidery, twill — matched to the garment, not to what we own.

  • Fundraising on every sale

    A share of each order goes back to the program automatically.

  • No setup fees

    Free to open, free to run. You pay for gear, not for a storefront.

  • Printed in-house

    On Long Island, by us. Which is why a rush is a conversation and not a no.

  • Open around the clock

    Order at 11pm the night before a tournament. The store never shuts.

A 12 Diamond print setup running at a tournament venue

On site

Event Merch Program

We bring the press to your tournament and print live. Players buy it, wear it, and walk out in it.

Book Your Event
A team store page open on a phone

All season

Custom Team Apparel

A 24/7 store in your colors with your artwork, built in an afternoon and open all year.

Start a Store

Join the fam

@12diamondapparel
  • Team shirts laid out before an event
  • A player in a custom warmup
  • Press running a run of hoodies
  • Sideline tent at a tournament
  • Close-up of a printed team crest
  • Boxed orders ready to ship

Want a store for your team, club, or event?

Tell us the program and the season. We will have something to look at within a day.

Request a Store