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Hoka Kaha 3 GTX vs On Running Cloudultra 2

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

No winner on weight yet. Some brands publish the weight of one shoe, others the weight of a pair, and we have not yet confirmed which one applies to the Hoka Kaha 3 GTX. Until it is checked against the maker's own figure, the numbers below are not a fair comparison, so choose on fit, features and price.
Spec Hoka Kaha 3 GTX On Running Cloudultra 2
Weight 550 g · 0.550 kg · 1.21 lb
as listed — one shoe or a pair, not yet confirmed
 590 g · 0.590 kg · 1.30 lb
per pair (medium-sized pair)
Brand Hoka On Running
Category Footwear Footwear
Hoka Kaha 3 GTX
550 g as listed

Premium hiking boot with Gore-Tex waterproofing and superior cushioning. Weight per shoe in men's size 9. Excellent support for long trails.

See it in your base weight → Full details →
On Running Cloudultra 2
590 g

Ultra trail shoe with CloudTec cushioning for long distances.

See it in your base weight → Full details →

Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.

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Hoka Kaha 3 GTX vs On Running Cloudultra 2: which should you buy?

We list the Hoka Kaha 3 GTX at 550 g and the On Running Cloudultra 2 at 590 g, but that is not enough to call one lighter: one of these numbers may be a single shoe and the other a pair. We are checking every weight in the database against the maker's own page. Once the Hoka Kaha 3 GTX is confirmed, this page will say which one wins on weight.

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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