Worn 1x. Weren’t a great fit for my foot. Would love for someone else to enjoy these great outdoors in these beautiful hiking boots! For extra breathability on summer hikes and a softer, more shoe-like feel, REI has its Flash Hiking Boot ($130) model. Not unlike the Co-op’s Flash line of packs, which offer airier, less cumbersome options compared to Traverse packs, these boots maintain some key features but strip away the excess. REI Flash Boot Specs Materials: Recycled knit upper, 75% recycled poly waterproof HydroWall membrane, 10% Bloom algae midsole, lightweight shank, recycled grip outsole Lugs: 4 mm Weight: 30 oz. (women’s) The upper uses REI’s FirmaKnit construction (the same upper material as in the Traverse). As expected, the knit construction feels more air-permeable and offers greater fore and lateral flex than other boots. A lightweight nylon shank still carries the co-op’s HydroWall waterproof membrane. Anti-slip rubber graces the sole, dotted with 4mm lugs in front and back for grip and braking on the trail. A modest midsole — made from 10% Bloom algae — targets a compromise between cushy comfort and responsive trail feel. And for extra rock-kicking protection, a nylon shank with TPU overlay wraps the boot. And living up to the name, the Flash weighs just over a pound per boot (2.2 pounds per pair for our men’s pair, size 13). Flash feels more like a cocoon for your feet. Even so, the Flash beat back the slush and such — and the grip was solid