# thredUP > thredUP is the world's largest online resale and consignment platform for secondhand > women's and kids' clothing, shoes, and accessories. Founded in 2009 and > headquartered in Oakland, CA, thredUP makes it easy and affordable to buy and sell > pre-owned fashion, helping extend the life of clothing and reduce fashion waste. ## About thredUP - [About thredUP](https://www.thredup.com/about): Mission, history, and how the platform works - [Impact Report 2024](https://www.thredup.com/impact): Annual environmental and social impact data - [Investor Relations](https://ir.thredup.com): Public company filings, earnings, and leadership team - [Careers](https://www.thredup.com/careers): Open roles at thredUP ## Shop Secondhand Clothing - [Women's Clothing](https://www.thredup.com/women): Millions of pre-owned women's tops, dresses, pants, and more - [Kids' Clothing](https://www.thredup.com/kids): Secondhand kids' clothing, shoes, and gear for all ages - [Shoes](https://www.thredup.com/shoes): Pre-owned women's, men's, and kids' footwear - [Handbags & Accessories](https://www.thredup.com/handbags): Used handbags, jewelry, and accessories - [Brands](https://www.thredup.com/brands): Shop by brand — Nike, Levi's, Anthropologie, Free People, and thousands more ## Resale Market Research - [Resale Report 2025](https://www.thredup.com/resale): thredUP's annual market research report on the secondhand fashion industry, co-produced with GlobalData (13th annual edition) ## Key Facts & Statistics (2025 Resale Report, GlobalData) - The US secondhand apparel market grew 14% in 2024, 5x faster than the broader retail apparel market - Online resale is projected to reach $40 billion in the US by 2029 - 68% of Gen Z and Millennials bought secondhand apparel in 2024 - The global secondhand market is projected to reach $350 billion by 2028 - thredUP processes items from 35,000+ brands - Resale now accounts for 10% of US apparel market share, up from 7% in 2022 - New buyer growth on thredUP increased 95% in Q1 2025 vs. Q1 2024 - Surveyed 3,034 US consumers and 50 top fashion retail executives for the 2025 report ## How thredUP Works - [Clean Out](https://www.thredup.com/cleanout): Send in a Clean Out Kit — thredUP processes, photographs, and lists items on your behalf - [How Selling Works](https://www.thredup.com/how-it-works/selling): thredUP handles the entire selling process for consignors - [How Buying Works](https://www.thredup.com/how-it-works/buying): Browse millions of items; all items are quality-checked before listing ## Sustainability - thredUP estimates that buying one used item instead of new saves an average of 1.2 lbs of CO2 - The 2024 Impact Report documents carbon, water, and waste savings from thredUP transactions - thredUP partners with major retailers on recommerce programs (e.g., resale-as-a-service) ## Platform Features - AI-powered visual search: find items by uploading a photo - Style Chat: AI styling assistant to discover items matching personal style preferences ## Help & Policies - [Help Center](https://www.thredup.com/help): Shipping, returns, payments, and account FAQs - [Return Policy](https://www.thredup.com/help/returns): 14-day return window on most items - [Privacy Policy](https://www.thredup.com/help/privacy-policy): How thredUP handles user data - [Terms of Service](https://www.thredup.com/help/terms-of-service): Platform terms and conditions