Online sales account for just 17% of spending on denim in the US – no surprise given that finding the perfect fitting jeans can require multiple store visits. Levi’s aims to change that with its Virtual Stylist, a chatbot that learns a user’s ideal style and fit before making recommendations.

Denim comes in all shapes and sizes; from skinny to slim fit to bootcut. We wear it while gardening, to work or to an evening soirée. But in 2014, denim sales in the US dropped by 8%, as activewear grew by the same amount. How can denim brands stay relevant in the age of the yoga pant?

Now that athleisure is a bona fide style movement, you can fashionably leave your house in yoga pants. Whether we like it or not, this trend is here to stay, as Americans have gotten too comfortable in their socially acceptable sweats to give them up anytime soon.

Traditional apparel retailers are struggling. Teen brands like Abercrombie & Fitch, Aeropostale and American Eagle are downsizing and changing their strategies, while C. Wonder and Wet Seal have shut down locations. The problem? Millennials want more casual clothing.