Men’s Journal aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Now’s a great time to upgrade your hiking boots —incredible sales can be found online at every turn. Adidas recently spun up a great deal on a pair of weather-resistant boots —just $48 a pair—while Amazon's No. 1 bestseller is holding strong at 40% off. Now, REI has marked down a very well-regarded pair fro...