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KEEN Hightrail Waterproof Hiking Boot vs Mammut Aenergy Trail Endurance Ultra

Weight and specs compared for 2026 — and which one to choose.

Mammut Aenergy Trail Endurance Ultra is the lighter option — 510 g lighter than the KEEN Hightrail Waterproof Hiking Boot (61% less weight). If grams matter to you, that is the one to beat.
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Spec KEEN Hightrail Waterproof Hiking Boot Mammut Aenergy Trail Endurance Ultra
Weight 830 g · 0.830 kg · 1.83 lb 320 g · 0.320 kg · 0.71 lb
Brand KEEN Mammut
Category Footwear Footwear
KEEN Hightrail Waterproof Hiking Boot
830 g

Men's waterproof hiking boot weighing approximately 415g per shoe, featuring lightweight construction suitable for day hiking and backpacking with wet weather p...

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Mammut Aenergy Trail Endurance Ultra
320 g

Lightweight trail running shoe designed for mid-to-long distance runs and hiking. Features Vibram Megagrip outsole and FLEXTRON PRO plate for technical terrain.

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KEEN Hightrail Waterproof Hiking Boot vs Mammut Aenergy Trail Endurance Ultra: which should you buy?

If saving weight is your priority, the Mammut Aenergy Trail Endurance Ultra wins — at 320 g it is 510 g (61%) lighter than the KEEN Hightrail Waterproof Hiking Boot (830 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest footwear page, or browse the full gear weight database.

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