Athletic wear is a bright spot in the otherwise troubled apparel sector. Walk down almost any street and you’re bound to see people who look like they’re headed to a yoga studio, spin class or specialty gym — whether they are or not. This is part of a trend in which athletic wear is becoming a fixture in mainstream fashion and apparel. From running gear and workout clothes to yoga pants and leggings, sportswear is growing ever more popular in the U.S. and increasingly taking hold in the developing world. This is creating opportunities for athletic apparel and footwear companies, especially those capable of pairing sought-after designs and innovation with the marketing and distribution muscle needed to stand out in a crowded field.