What Our Gearhead(R) Experts Are Saying: "This shoe makes long hikes feel easier. The BOA system dials in the fit perfectly, and the SpeedARC midsole with FlexPlate gives me that propulsive feel-like I'm getting a boost with each step. Add in the Matryx upper with Kevlar threads and the Quantum Grip outsole, and it's a hiker that's as tough as it is fast." The Merrell Speedarc Surge Boa Hiking Shoe is built for hikers who want to move faster, go farther, and feel fresher on the trail. At its core is the SpeedARC(TM) midsole system, a first-of-its-kind design combining dual layers of FloatPro+(TM) supercritical foam with a nylon FlexPlate(TM). The result: twice the cushioning and 100% more energy return than traditional hiking boots, turning every stride into forward momentum. The dual BOA(R) Fit System ensures a micro-adjustable fit that locks in with precision, keeping feet secure on uneven terrain. A lightweight Matryx(R) upper, woven with Kevlar(R) filaments and high-tenacity polyamide, balances breathability with abrasion resistance, while Merrell's Quantum Grip(TM) rubber outsole provides reliable traction from rocky ridges to slick city sidewalks. With its propulsive ride, precision fit, and ultramodern construction, the Speedarc Surge Boa redefines what a hiking shoe can do-delivering speed, stability, and confidence in every mile.