Leggings are a fashion staple for every wardrobe and can be worn with anything from dresses to sweaters. They’re comfortable, hold everything in and make your lazy outfits look chic. But there are certain rules that must be followed when wearing them to work.

Leghings can be worn with a crisp button-down shirt and dressy cardigan to make them look more formal, if your workplace is primarily socially conservative. But they can also be worn with a long sweater or oversized knit top that hits mid-thigh, and nice loafers or other non-sneaker footwear, for a casual professional look. And of course, a bold statement necklace or flashy watch can dress up the outfit and make it more professional.

From Athleisure to Activewear: Embracing the Versatility of Leggings in Your Wardrob

But the biggest rule to follow when it comes to leggings is not to wear them too tight, which can lead to a muffin top and even camel toe. If you’re unsure what size to wear, check the size chart on the website or ask the sales associate at your local store for assistance.

We spoke to Katrina Olivares, a hot yoga instructor who wears leggings seven days a week, and asked her for some tips on finding the right pair of leggings for you. She recommends looking for a higher waistband, because this will prevent the garment from rolling down with movement and make it more durable. Also, she says to look for fabric that has four-way super stretch and moisture-wicking technology, which will keep you cool and dry during sweaty workouts.