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National Sportswear of Belleville, NJ

4.8
(32 reviews)

Business Details

368 Cortlandt St, Belleville, NJ
07109, United States
(973) 759-2005
https://www.njsportswear.com/

About

Custom T-Shirt StoreClothing StoreCustom Made Clothing Store
NATIONAL SPORTSWEAR was established in 1947 by Marc S. Tartaglia and Robert Rossetti as a custom outdoor sign and lettering company. Back then it was known as Red Diamond Company, named after the US Third Army (11th Regiment) 5th Infantry Division in which Marc proudly served under General Patton in World War II. As the company grew the need for mass production of signs and lettering became apparent and Red Diamond was among the first to introduce silk screen printing for the production of multiple signs, banners, etc.

Location

National Sportswear of Belleville, NJ
368 Cortlandt St, Belleville, NJ
07109, United States

Hours

Reviews

4.8
32 reviews
5 stars
30
4 stars
0
3 stars
0
2 stars
0
1 star
2
  • HB
    Helen Borbon
    Dec 23, 2025
    1.0
    If I could zero star I would absolutely!! My husband passed away out of the country. I was in shock and disbelief. I therefore, decided to do a celebration of life for him!! My best friend gave him the very large order and paid cash well in advance for over 70 shirts with my husband's face. When she went to pick them up the same day he told her he had a problem!! He didn't have the shirts. He drew a cartoon like figure which I was not ok with!!! This was for my deceased husband!!! It wasn't a joke!! Thankfully, he refunded our money. Luckily we found out my granddaughters boss does shirts as a side business! He was able to do them in a day!! He put some other business on hold and as a favor bailed us out! I can't thank him enough!!
  • CP
    Christopher Paolello
    May 16, 2022
    5.0
    Honest integrity and zero default
  • JS
    Jay Seelig
    Dec 3, 2021
    5.0
    Family run business. First of its kind, printing up baseball team uniforms since 1947 (as in Nineteen Fourty Seven.) None better anywhere. Ask for Mike or Mark, owners.
  • KN
    Kevin Nadrowski
    Sep 16, 2016
    1.0
    Rip off! Will never do business with them again.

Frequently Asked Questions About National Sportswear of Belleville, NJ

What products and services does National Sportswear of Belleville, NJ offer?

National Sportswear of Belleville, NJ specializes in custom T-shirts and clothing, including custom-made garments, serving as a custom T-shirt and clothing store.

What are the business hours for National Sportswear of Belleville?

The business is open Tuesday through Friday from 10:00 AM to 4:30 PM and on Saturday from 10:00 AM to 12:00 PM. It is closed on Mondays and Sundays.

Brand Certified Facts from National Sportswear of Belleville, NJ

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Certified March 01, 2026Yext Knowledge Graph
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