Are you looking to make a stock investment in the retail sector? Two considerations are lululemon Athletica (NASDAQ: LULU) and Nordstrom (NYSE: JWN). One is a relative upstart founded in the late 1990s, known for its athletic apparel. The other is an upscale department store that traces its roots back to the turn of the 20th century. Last year's tough retail environment affected both companies to different degrees. But the important consideration for investors is where each goes from here. To figure that out, it's time to take a closer look at each company. Image source: Getty Images. Popular apparel While lululemon benefited from people staying home and working out more in the latter part of last year as it reopened stores, the trend looks like it has legs. The designer and retailer of apparel and accessories used by active people for things like yoga and running, was on a roll even before 2020. From fiscal 2015 to fiscal 2019, revenue nearly doubled from $2.1 billion to $4 billion. This drove lululemon's operating income from $369.1 million to $889.1 million. Fiscal 2019 ended on Feb. 2, 2020. In last year's third quarter, the company's adjusted revenue increased by 21% to $1.1 billion, and adjusted operating income rose by 21% to $213.5 million. Management remains upbeat, too. Its fourth-quarter guidance calls for a mid-to-upper teen percentage increase in sales. Aside from the trend toward comfortable athletic wear, lululemon remains relevant and a step ahead of the competition by rolling out new and innovative products. Department stores hit a snag The general aversion to department stores, particularly as competition intensified from online retailers, notably Amazon (NASDAQ: AMZN), has hurt Nordstrom's results. The company saw its sales go from $14.1 billion to $15.1 billion from 2015 to 2019, but growth decelerated and the top line fell by 2.2% in that last year. Over the five-year period, operating income dropped from $1.1 billion to $784 million. Nordstrom's difficulties continued last year, with sales dropping by nearly 32% to $10.4 billion and a $1 billion operating loss compared to $784 million of operating income. Management's plan to turn around results includes expanding its "market strategy," which allows for greater integration between e-commerce and physical stores so customers can pick up their goods faster and the company can ship them faster. It is also planning on turning around its off-price Rack stores by offering more merchandise at lower prices. Whether these changes are sufficient to get people to return to shopping at Nordstrom remains a question. It all starts with retailers offering compelling merchandise that their potential customers want. After all, while its digital sales grew by 24% in the latest period, representing 54% of total sales, it was not enough to boost the company's top line. The choice Facing stiff competition, Nordstrom is up against major challenges in getting customers back to shopping at its stores and online. On the flip side, lululemon continues to execute. Fashions may come and go, but comfortable clothing is always in style, and as long as it continues to look ahead, lululemon is the hands-down winner. 10 stocks we like better than Lululemon AthleticaWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Lululemon Athletica wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of February 24, 2021 John Mackey, CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool's board of directors. Lawrence Rothman, CFA has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Amazon. The Motley Fool recommends Lululemon Athletica and recommends the following options: long January 2022 $1920 calls on Amazon and short January 2022 $1940 calls on Amazon. The Motley Fool has a disclosure policy.Source