Will Dunn owes his life—and maybe his marriage—to his REI Co-op Half Dome tent. “The tent was a gift from my now-in-laws before we were in-laws,” he says. “It was my first backpacking ...

The Co-op's #1 bestselling tent turns 45 this year. Campers reap the rewards with updates like more room, a retro logo, and donating 20% ...