The Founders of a Clothing Rental App Talk Sustainability and Fashion Essentials

Nike Air Max 90 ($130)

"I am on my third pair of these sneakers!" Giese says. "They are easy, go with everything, and are by far the most comfortable sneakers I have worn. I love to walk - I will frequently take a 30-45 minute walk midday to reset - and these are my go-to. They've been part of many of my airport outfits and travels, too."

This model is crafted from sustainable materials and is available in eight different colorways — or you can customize your own unique design on the brand's website.