A test of men's backpacks has identified a selection of top-rated options, with some outlets focusing on travel bags, hiking backpacks, and ultralight packs. The testing process involved hiking hundreds or thousands of miles to evaluate the backpacks' performance. The number of top-rated backpacks varies, with some outlets highlighting 10 or 6 best options, while others focus on specific types such as ultralight packs or carry-on travel backpacks.