Its extensive catalog features jerseys, shirts, shorts, jackets, hoodies, and other clothing, with player and fan versions, training styles, retro designs, and options for men, women, and children. Shoppers can browse club and national-team collections across major football leagues, including the Premier League, La Liga, Bundesliga, Serie A, and Ligue 1, as well as international teams and past-season kits. The site also offers NBA apparel, including team clothing, jackets, casual T-shirts, and player-themed items, alongside rugby and motorsport collections.

Its motorsport selection includes racing team apparel and products associated with brands and teams such as Ferrari, McLaren, Mercedes, and Red Bull Racing. Additional categories include casual clothing, fitness wear, and clearance items. The retailer promotes an affiliate program that invites customers to refer friends and earn shopping benefits.

With products spanning multiple sports, teams, styles, and age groups, mmjerseys99 presents a broad online destination for supporters seeking apparel inspired by their favorite clubs and competitions