Which brand specializes in activewear like active shorts and active pants?

Fabletics is well-known for specializing in activewear, which includes a variety of products such as active shorts and active pants. The brand focuses on providing high-quality, stylish apparel aimed at fitness enthusiasts and individuals looking for comfortable yet fashionable workout gear. Fabletics emphasizes functionality and performance, making it a go-to choice for those seeking effective activewear that supports various physical activities, from yoga to running.

Faherty, while offering casual clothing, primarily focuses on lifestyle apparel rooted in coastal inspiration rather than strictly activewear. Fendi is a luxury fashion house recognized for high-end designer items and does not focus on activewear but rather on haute couture and stylish urban clothing. Fear of God (FOG), known for its contemporary streetwear, does produce casual and lifestyle items that may intersect with activewear but does not specialize in it to the extent that Fabletics does. This specialization in activewear by Fabletics is what makes it the correct answer.