With a world’s worth of secondhand and used clothing available, resale platforms like Depop are connecting buyers and sellers of even the most niche and specific styles across large distances.

This as-told-to essay is based on a transcribed conversation with Danielle Mass, a 25-year-old founder from London, about starting a Depop shop. It has been edited for length and clarity.

Williams’ Depop drop features standout fashion pieces ... Among the items, one particularly meaningful piece stands out—the LA Fam red varsity jacket. Williams recalled styling it with ...