Fit and quality are of the utmost importance to allow players to perform their best. As the team's identity, uniforms also need to look great. Every order with 503 is a blank slate. From the colors to the cut, every order is customized to your exact specifications. We cover all sports and offer wholesale discounts to ensure professional quality apparel is affordable to your organization. In addition to uniforms, we offer on field accessories (ie custom gloves and compression sleeves) and sideline apparel (jackets, sweatshirts etc.)

NFL Alumni Academy jerseys designed and manufactured by 503 Sports.

Our work doesn't end with the team on the field. 503 Sports separates itself from other brands as experts in fan apparel! Our Royal Retros brand is known for some of the best fan apparel in the industry with an emphasis on replica jerseys. Whether you have a small team or a large league, we can design and manufacuter merchandise for your entire fan shop. Our goal is to build your brand with high quality apparel affordable to the average fan.

Birmingham Stallions fans wearing officially licensed replica jerseys and hats made by our Royal Retros brand