“Free of all the bells and whistles,” the Mix Master Aeroblock is simply a solid all-around shoe. It features a four-millimeter heel-to-toe drop, firm cushioning and a flexible mid-sole.
The upper features a closed-mesh lining (Aeroblock), designed to keep feet dry and comfortable in cool conditions, and is coated with a dirt- and water-resistant coating (EZ Clean) that repels moisture and makes the shoes easy to clean.
A forefoot “shock plate” disperses impact pressures and an antimicrobial footbed helps keep feet stink-free.
Traction: Small, rounded lugs are fine on smooth, groomed surfaces but are no match for slippery mud or rock-laden trails.
Best For: The shoe provided testers with adequate rock protection—except in the heel area—while maintaining a smooth, road-shoe feel on pavement. According to one tester, “It’s just the right balance of protection and race-day performance.” The water-resistant upper worked well in wet, muddy conditions but did not drain well.
The Fit: The Mixmaster runs almost a half size long and has a wide toe box. It best fits a medium- to high-volume foot.Testers lauded the easy-cinching lacing system and secure heel fit.
Drawbacks: After just three weeks of mid-range mileage (three to five miles a day), several testers noted premature tread wear.
Tester-Monial: “Merrell did a great job creating a hybrid shoe. The Mix Master is just aggressive enough that I felt sure-footed on trails while still comfortable on paved surfaces.” –Brad Williams, Boulder, CO
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