For buying used outdoor gear
GearTrade.com offers “one of the broadest selections of used outdoor gear,” with everything from hiking boots to surfboards. Prices are often 80 percent off retail value.
OutdoorsGeek.com not only supports the purchase and sale of secondhand gear, it also lets you rent equipment to see if you like it. It’s an “astonishingly user-friendly” service.
GoSwitchback.com specializes in cycling gear, but the site also has an “impressively deep” catalog of apparel and gear for hiking and camping. Though not all items have photos, the staff is very responsive to queries.
TheNorthFace.com/renewed sells only used North Face gear, but every item is inspected by brand representatives and repaired if needed.
REI.com/used sells REI equipment but also equipment from other brands. Because REI shoots the product photographs, the site is “easy to navigate and a pleasure to look at.”