Which brand is associated with offering a variety of categories under the 'activewear' label?

Vuori is recognized for its diverse range of activewear, making it the most fitting choice among the listed options. The brand specializes in providing high-quality, performance-oriented clothing designed for various activities, including yoga, running, and other athletic pursuits. Vuori combines functionality with modern style, catering to consumers who seek both comfort and aesthetics in their workout gear.

In contrast, while Viktos focuses on tactical and outdoor apparel, it does not encompass the wide variety of activewear styles that Vuori offers. Vivienne Westwood is known for high-fashion and avant-garde designs, primarily in luxury clothing, rather than activewear. Vineyard Vines specializes in casual wear typically associated with a preppy lifestyle, which does not align with the specific market of activewear. Thus, Vuori stands out as the brand that embodies the activewear category with its versatile offerings.