Philadelphia Retailer Addison Bay Expanded Operations

The activewear company has grown its retail presence to cover all 50 states following a recent expansion.

Updated on Oct. 13, 2026 in Retail

Philadelphia Retailer Addison Bay Expanded Operations

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Philadelphia-based apparel company Addison Bay has officially expanded its distribution to include all 50 states. The brand, which maintains its headquarters on Market Street, has also opened its fourth retail storefront in Dallas, Texas.

Why it matters

The brand reached this growth milestone after its founder identified a shifting consumer preference toward wearing activewear for daily activities outside of the gym. This transition has allowed the company to move beyond its origins as a small collection to a national presence.

Addison Bay now distributes to all 50 states and operates four retail stores, a significant expansion from its debut in 2018 which featured only four styles. The company maintains its growth through a schedule of approximately 20 annual collection releases.

The players

Addison Bay

An activewear brand founded in 2018 that designs apparel intended for daily use beyond the gym.

Marguerite Adzick

The founder of the Philadelphia-based company who identified the trend of consumers wearing athletic clothing for everyday tasks.

The details

Operating from its Philadelphia headquarters, the company manages design, shipping, and administrative functions in-house. Designs for their collections are planned approximately one year in advance to support their high volume of annual releases.

2018: Addison Bay was founded in Philadelphia.
October 2026: The company reported nationwide expansion and store growth.

Market Landscape

The firm is capitalizing on the long-term rise of athleisure as a category in consumer apparel, moving beyond specialized gym wear to serve broader daily lifestyle needs. This national growth positions the company to compete more aggressively in the retail sector against established national fitness brands.

Local shoppers and customers across the country now have increased access to the brand's apparel through its expanded retail store network and 50-state shipping. Consumers should note that items in high-demand collections, such as the Philadelphia Eagles line, can sell out rapidly.

The takeaway

The company's rapid growth shows that activewear brands can successfully transition from boutique operations to national retailers by focusing on lifestyle versatility. Consumers looking for specific limited-edition collections should monitor release dates closely due to the high speed at which inventory can sell out.