Secondhand racks this fall are dominated by one specific stretch of fashion history: the late 1990s through the mid-2000s, as low-rise jeans, baby tees and logo tracksuits finally reach donation bins in bulk at the exact moment Gen Z shoppers are actively hunting for them.

Key Points

• Depop’s own 2026 trend forecast names shoppers’ current pattern “Neo Nostalgia,” a mix of 70s, 90s and early-2000s pieces rather than one single throwback look, according to Depop.
• ThredUp’s 2026 Resale Report projects the global secondhand apparel market will reach $393 billion by 2030, growing twice as fast as new apparel sales.
• ThredUp’s own newsroom credits 71 percent of resale market growth through 2030 to Gen Z and Millennial shoppers specifically.
• Goodwill Industries International’s own blog tells shoppers that Y2K and street style will dominate the back-to-school season this year.

That demand is landing on a supply that took two decades to build. Depop’s report points to search spikes for items like JNCO-style jorts and vintage Lululemon as shoppers hunt for specific era markers rather than a generic “vintage” look.

The donation side of the equation is just as telling. Goodwill Industries International’s blog specifically calls out pieces from Juicy Couture, BCBG and Limited Too as examples of what’s been piling up in donation streams long enough to become sellable inventory again. NBC News was describing Gen Z’s Y2K “nowstalgia” driving a thrifting rush years before this fall’s donation wave caught up to the demand.

None of this is coincidental timing. Clothes bought new in 2001 are old enough now that their original owners are finally clearing them out of closets and attics, and ThredUp’s report frames that shift as structural rather than a one-season fad, with heritage and Gen X-era brands surging as donation sources age into resale relevance.

The catch for shoppers: this looks like a one-time bump, not a renewable one. The Y2K and early-2000s pieces on racks right now are largely coming from people finally letting go of items they held onto for 20-plus years — velour tracksuits, low-rise bootcut denim, mesh going-out tops, chunky-heeled boots. Once that particular wave sells through, there’s no guarantee an equivalent wave replaces it next season.

That’s the actual argument for grabbing what’s there before it thins out. A donation cycle like this one runs on how long people keep clothes before letting go, and the pieces flooding racks now reflect closets that sat untouched for two decades. Next fall’s cast-offs will skew a few years younger, and this particular window — peak Y2K, straight from the source — narrows the moment those closets finish emptying out.