06 Boots vs Trail Runners Head to head
Merrell Moab 3 vs Salomon X Ultra 5: Which Is Better for Wide Feet?
Both are popular waterproof mid hikers, but they aren't sized the same. Here's how their published widths, weight and support actually compare.
- By
- Mike M.
- Updated
- Method
- How we choose

We earn a commission if you buy through our links, at no extra cost to you. It never decides the ranking: the method is published. Affiliate disclosure
The verdict
Pick one in ten seconds
Stock photoPick if you need Wide in men's or women's
Merrell Moab 3 Mid Waterproof
8.0 / 10Sold in Medium and Wide for both men and women, with a molded nylon arch shank under a Vibram TC5+ outsole.
Check price on Amazon#ad · Price set by Amazon · Affiliate disclosure for the link to Merrell Moab 3 Mid Waterproof
Stock photoPick if you want a more agile fit
Salomon X Ultra 5 Mid GTX
6.5 / 10A men's E - Wide option and an Advanced Chassis for a more athletic ride, though the women's version comes in B - Medium only.
Check price on Amazon#ad · Price set by Amazon · Affiliate disclosure for the link to Salomon X Ultra 5 Mid GTX
| Spec | Merrell Moab 3 Mid Waterproof | Salomon X Ultra 5 Mid GTX |
|---|---|---|
| Widths | Men's Medium, Wide (sizes 7-15); Women's Medium, Wide (sizes 5-12) | Men's D - Medium, E - Wide; Women's B - Medium |
| Weight | 495 g (men's, half pair); 410 g (women's, half pair) | 13.75 oz (women's, Zappos); men's not published |
| Membrane | Merrell waterproof membrane (in-house, unnamed) | GORE-TEX |
| Drop | 11.5 mm | Not published |
| Outsole | Vibram TC5+ | All Terrain Contagrip |
Width and fit for wide feet
This is where the two boots split. Merrell sells the Moab 3 Mid Waterproof in Medium and Wide for both men and women, sizes 7-15 for men and 5-12 for women. Salomon sells the X Ultra 5 Mid GTX in men's D - Medium and E - Wide, but the women's version comes in B - Medium only, with no wide listed. If you're shopping for a woman with wide feet, that difference alone settles it in Merrell's favor; for men, both offer a wide option.
Support, chassis and weight
The Moab 3 Mid Waterproof uses a molded nylon arch shank under a Super Rebound Compound midsole with a Merrell Air Cushion heel, at 495 g (men's, half pair). The X Ultra 5 Mid GTX builds around Salomon's Advanced Chassis with an EVA midsole and quickLACE lacing; Salomon publishes a women's weight of 13.75 oz but doesn't list a men's figure. Reviewers and Salomon's own marketing describe the X Ultra line as built for a faster, more agile stride, while the Moab leans toward a wider, more accommodating fit.
Lacing and heel hold
The X Ultra 5 Mid GTX uses Salomon's quickLACE system, a single pull-cord lacing setup built for fast on-and-off rather than a traditional lace-up. The Moab 3 Mid Waterproof's listing doesn't mention a speed-lace system, so plan on standard laces and a normal lacing routine. If your heel lifts in either boot, a heel-lock wrap fixes that without buying a different size; see hiking boot lacing techniques for how to tie one, and pair it with a sock built for friction rather than a thin liner; our picks are in the best hiking socks.
Waterproofing: named membrane vs. in-house
The Salomon uses GORE-TEX, a third-party membrane with its own published waterproof standard. The Moab 3 Mid Waterproof uses Merrell's own in-house membrane, which Merrell doesn't name or attach a third-party rating to on the pages we checked. Both are marketed as waterproof; only one comes with an outside standard attached to that claim. If you want the GORE-TEX name on a Moab specifically, Merrell also sells a Moab 3 Mid GORE-TEX version, sized the same as the standard Moab 3 Mid.
Neither boot is the last word on fit or support for every foot. For a wider-forefoot option in the same low-cut family as the X Ultra, see the best hiking shoes, and if you want to see the Moab 3 stacked against a dedicated wide-fit boot rather than the X Ultra, see KEEN Targhee vs. Merrell Moab. If ankle history rather than width is your main concern, the X Ultra 5 has its own head-to-head against a taller Salomon boot in Salomon X Ultra vs. Salomon Quest.
Who should skip both
If you need more room than a Wide letter width gives you, or your feet are wide at the forefoot specifically rather than throughout, a dedicated wide-toe-box shoe may fit better than either mid boot here. See the best hiking shoes for lower-cut options that include wide-toe-box picks.
In detail
Both contenders, in full
Stock photoPick if you need Wide in men's or women's
Merrell Moab 3 Mid Waterproof
Built for
Sold in Medium and Wide for both men and women, with a molded nylon arch shank under a Vibram TC5+ outsole.
Widths sold: Men's Medium, Wide; Women's Medium, Wide
Published specs (tap for source)
- Problem fit (30%)
- 9
- Fit range (40%)
- 8
- Support & protection (10%)
- 7
- Durability & warranty (15%)
- 7
- Weight (5%)
- 6
What it gets right
- Sold in Wide for both men and women
- Vibram TC5+ outsole with 5 mm lugs
- Pig suede leather and mesh upper over a molded nylon arch shank
What it doesn't
- Membrane is unnamed, so there's no third-party waterproof rating to check
- Check the Amazon listing: it may not stock every width
- Stack height not published
Skip it if…
…you hike mostly in hot, dry weather: a membrane slows drying and adds heat, and the breathable Moab 3 Mid does the same job cooler.
#ad · Price set by Amazon · Affiliate disclosure for the link to Merrell Moab 3 Mid Waterproof
Stock photoPick if you want a more agile fit
Salomon X Ultra 5 Mid GTX
Built for
A men's E - Wide option and an Advanced Chassis for a more athletic ride, though the women's version comes in B - Medium only.
Widths sold: Men's D - Medium, E - Wide; Women's B - Medium
Published specs (tap for source)
- Problem fit (30%)
- 6
- Fit range (40%)
- 7
- Support & protection (10%)
- 7
- Durability & warranty (15%)
- 6
- Weight (5%)
- 6.5
What it gets right
- Men's E - Wide version
- Advanced Chassis with an All Terrain Contagrip outsole
- quickLACE lacing
What it doesn't
- Men's weight, drop, stack and shaft height not published on Zappos
- Women's version comes in B - Medium only
Skip it if…
…you're a woman with wide feet: Zappos lists the women's version in B - Medium only.
#ad · Price set by Amazon · Affiliate disclosure for the link to Salomon X Ultra 5 Mid GTX
How we chose
Units we claim to have tested: 0
Everyone in this category says they tested it. We didn't, and we say so. Every pick is scored from the brand's published specs, width and size charts, warranty terms and cited research, against the problem this page is about. The sources are listed at the bottom of the page.
Scores are editorial judgments from that published data, not lab results. Nobody pays for placement, and a missing spec is scored neutral, never guessed. The full rubric is on How We Choose.
- Problem fit
- 30%
- Fit range
- 40%
- Support & protection
- 10%
- Durability & warranty
- 15%
- Weight
- 5%
The weights this page used for its scores.
FAQ
Questions people ask
Which is better for wide feet: the Merrell Moab or the Salomon X Ultra?
Does the Salomon X Ultra 5 come in wide?
Is GORE-TEX more waterproof than Merrell's own membrane?
Which boot is lighter, the Moab 3 or the X Ultra 5?
Keep going
Related fixes and picks
- Best hiking shoesLow-cut alternatives to both of these mid boots.
- Hiking boots vs. trail runnersThe bigger decision behind picking any boot at all.
- KEEN Targhee vs. Merrell MoabHow the Moab compares to a boot sold in wide for both men and women.
- Salomon X Ultra vs. Salomon QuestThe X Ultra compared against a taller Salomon boot for ankle support.
Update log
What changed
- First published.
Receipts
Sources
- 01Merrell: men's Moab 3 Mid Waterproof product page (accessed Sep 2026)
- 02Merrell: men's Moab 3 Mid Waterproof Wide Width product page (accessed Sep 2026)
- 03Zappos: men's Salomon X Ultra 5 Mid Wide GTX product page (accessed Sep 2026)
- 04Zappos: women's Salomon X Ultra 5 Mid GTX product page (accessed Sep 2026)
We don't test boots, shoes or gear, and we don't pretend to. Specs, widths and materials come from the brand's own pages (or a named retailer's listing where the brand doesn't publish them); health information comes from the research and professional bodies linked above. Prices are set by Amazon and change often, so we don't print them. Where a figure isn't published, we say so. Read the full method.