Is premium athletic apparel entering its flop era?Despite the booming success of industry darlings like HOKA and On Cloud — two sneaker brands with a cult-like consumer following — top contenders in the activewear market are faltering in sales.Some are even shuttering.Lululemon’s Q4 report revealed stalling sales in the Americas, only growing 9% — significantly less than the year prior despite its steady success throughout the COVID-19 pandemic and related supply-chain hiccups. Shares in the apparel giant, ...