Are the Merrell Moab 3 hiking boots worth it?

How the Moab 3's waterproof membrane and outsole actually work

Here's the trick tucked inside the upper. Merrell layers a waterproof, breathable membrane between the pigskin leather and the mesh, and that membrane is punched with pores small enough to block a drop of liquid water but large enough to let water vapor, the stuff your foot sweats out, escape. That's why your feet don't turn into a sauna the way they would in a fully rubberized boot: water can't get in, but the moisture you generate can get out. Underneath that, a molded nylon arch shank runs through the midsole like a stiff spine, so when you're standing on an angled rock, your foot doesn't fold sideways, it stays level. The Vibram outsole below that is cut with 5mm lugs deep enough to bite into mud and loose gravel instead of skating over it. One practical note that actually matters for how this fits your day: these run small, so the half-size-up sizing isn't a suggestion, it's how the toe box ends up roomy enough for a sock and the swelling that comes with hours on your feet.