MERRELL TRAILSPRING TECHNOLOGY
USED IN THE ACTIVE SPEED OVERDRIVE MODEL
Horizontal tubes to optimize cushioning and reduce over-pronation on impact.
Unlike EVA, the tubes resist compression-set and won’t alter with temperature extremes—maintaining their cushioning and support functionality.

MERRELL AIR CUSHION® MIDSOLE

> Merrell Air Cushion® Midsole absorbs shock and adds stability.


> Absorbs shock up to four times the body’s weight for unmatched support and comfort.


> Keeps the heel centered in the boot and helps stabilize the foot.

Vibram® soles offer excellent grip on dry and wet ground, the wear resistance of Trek and Super Trek rubber and consistent performance in varied weather conditions.

Gore-Tex® fabric is the best assurance you can offer your customer that his or her boots will provide waterproof/breathable performance.

Polartec® insulation and lining wicks moisture away from the foot, dries quickly, breathes as body moisture vapour passes through and resists odour-causing bacteria with an antimicrobial finish.

The fibers of Thinsulate™ Insulation are exceedingly fine, making them ideal for trapping insulating air and reflecting back the body's radiant heat.

Microban permanent antimicrobial footbed protection provides resistance to the growth of bacteria, molds and fungi that cause odors and stains.

The SerdiaTM lining material incorporates a light-activated formula to absorb and neutralize footwear odors. The material continues working to keep your shoes fresh.