Birdies Cofounders Bianca Gates and Marisa Sharkey Share Their Must Haves

Gates loves the Celine Butterfly S005 Sunglasses ($460) for their versatility and chic silhouette. "I go from basic Bianca to glamorous Bianca in a second," she says. These slightly oversize sunglasses have green lenses and a flattering angled frame. Noting that she's had them for a long time, she loves that you can wear them with anything and everything. "You can be wearing workout clothes, you can have no makeup, you can be full makeup, you can be going to a resort, you can be going to watch your kids' soccer game on the weekend, no matter what you're wearing and what you're doing, if you want to add a touch of glam to go with your Birdies, of course, throw on these sunglasses, and boom, you are good to go," she says.

Pro Tip: Her go-to outfit with these sunnies is a great pair of jeans, a crisp button-down shirt, some jewelry, a sweater for chillier days, and a pair of Birdies.