HOT ! Under Armour Expanse Mid Waterproof Hiking Boots

Under Armour Expanse Mid Waterproof Hiking Boots

The Under Armour Expanse Mid Waterproof (Style 6000770) bridges the gap between a rugged backpacking boot and an agile trail runner. Designed for hikers who need extra stability on rough terrain, this 4.5-inch mid-cut boot provides essential ankle support without the heavy bulk of traditional hikers.

Weighing in at just 13.4 oz, this boot features a 100% waterproof, breathable membrane to keep feet dry through stream crossings and mud. The upper is armored with abrasion-resistant composite ripstop and a molded PU toe cap, while the underfoot is protected by an ESS Rock Plate to stop stone bruising. Powered by a Charged Cushioning® midsole, it absorbs impact mile after mile, reducing fatigue on long-haul treks.

FEATURES:

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  Mid-Cut Stability: The 4.5\" collar height offers increased ankle protection and stability on uneven ground compared to low-top trail shoes.


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  Waterproof & Breathable: A watertight membrane locks out rain and puddles but allows sweat vapor to escape, preventing the clammy feeling of rubber boots.


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  Armored Protection: Features a composite ripstop upper and a molded PU toe cap to deflect debris, plus an ESS Rock Plate in the sole for stability on jagged rocks.


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  Energy-Returning Comfort: The Full-length Charged Cushioning® midsole provides a plush, responsive feel, absorbing the shock of heavy packs and hard descents.


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  Anatomical Fit: Engineered with a wide toe box to allow natural toe splay and a molded INSITE® Contoura® footbed for consistent arch support.


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  All-Terrain Grip: The High-traction rubber outsole features aggressive lugs specifically spaced to shed mud and grip slick surfaces.


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  Height: 4.5\" (Mid-Cut)


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  Weight: 13.4 oz.


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  Waterproofing: Yes (Internal Membrane)


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  Insulation: Non-Insulated


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  Offset: 4mm


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  Lace Type: Standard Tie


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  Safety: Non-Safety Toe (Soft Toe)


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  Style Number: 6000770

Sizing & Fit Guide

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  Fit: Regular / Anatomical.


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  Runs Small: We recommend ordering ½ size up.
  


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  Width: The anatomical shape is more accommodating for narrow to standard feet. 


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  Sock Recommendation: If you plan on wearing heavyweight thermal wool socks for late-season hunts, consider going up a full size to maintain proper circulation.

Frequently Asked Questions (FAQ)

Are these good for snow/winter? These boots are waterproof, so they will keep moisture out, but they are non-insulated. For use in snow, you would need heavy thermal socks to stay warm. They are primarily designed for 3-season hiking.

Are the UA Expanse Mid boots waterproof? Yes. They feature a breathable membrane that is 100% waterproof. This barrier locks out rain and mud while allowing internal sweat vapor to escape, keeping your feet dry during active use.

Can I use these for trail running? These are designed primarily as lightweight hiking boots with a 4.5\" mid-cut for ankle stability. However, because they utilize the same Charged Cushioning® and high-traction outsole found in UA running shoes, they can be used for faster-paced movement if you prefer the extra ankle support over a traditional low-top runner.

Is the insole removable? No. The INSITE® Contoura® footbed is molded into the boot to ensure the correct arch support and structural integrity.