👉 It's a reference to Charles River, a company that produces a variety of athletic wear, including apparel for both men and women. The term "Charles River" is often associated with quality and durability in sports attire. The "apparel" part could refer to specific types of clothing such as base layers or technical gear. The word "Apparel" generally refers to clothing designed for sport activities, but it's possible that "Charles River Apparel" might be a reference to the brand's wide range of athletic wear and apparel services.