Performance Comparison

For a boot that can handle any terrain, a wide temperature range, and feel great on your feet, the Salomon X Ultra's are very difficult to beat.
Photo: Eric Bissell
Comfort
The X Ultra 3 scored highly in the comfort metric (especially after breaking them in!). If we had to choose a boot to wear for long days, it would be the X Ultra 3 Mid, because they provide the comfort of a burlier boot, while also remaining breathable and light on the foot. Weight is essential for comfort, as you end up having to lift extra weight each time you step with a more massive boot.
These boots do seem to run big in comparison to the X Ultra 2. This may also be because the boots are slightly sturdier than the previous model, making them feel bigger. We suggest trying them on before buying a pair (or purchasing from a retailer that allows returns). The same size boot in the 2 and 3 versions of the X Ultra feel quite different; the X Ultra 3 Mid provides more support underfoot and more stability in the ankle. This makes them a good option for longer trips, especially when carrying heavy loads, an improvement upon the previous iteration.

We like the X Ultra Mid 3 because of their breathability in warm conditions. This makes them a great option for the desert, while their water resistance also helps get through wet conditions with ease.
Photo: Eric Bissell
Support
Our feet were happy with us after a long day in the X Ultra 3's. The X Ultra 3 Mid is a step up from the previous model when it comes to support and padding. The EVA midsole provides support under the arch of the foot, while Solomon's Advanced Chassis stabilize each step. The boots come up fairly high around the ankle, providing ankle stabilization and padding.
The only drawback here is that the padding around the ankles doesn't let the laces snug up as tightly as other models in our test group. The ankle padding makes these boots comfortable, but we found ourselves having to stop and re-tighten the laces at times because of all the excess padding.

The lacing system on the Salomon X Ultra makes them easy to adjust, depending on the thickness of your sock or the width of your feet.
Photo: Eric Bissell
Weight
The X Ultra Mid 3 weighs in at 1.83 pounds in size 7.5 in US Women's. This surprised us as they weigh 0.2 pounds more than the Salomon X Ultra 2. On our feet, this weight difference was pretty negligible. It's not the lightest pair in our test fleet, but considering everything this boot provides, we find the trade-off of more weight for more performance to be well worth it.
Traction
The High Traction Contragrip sole is a grippy one. These soles have deeper lug depths and a more aggressive tread pattern than the X Ultra 2. Both models use Contragrip rubber, but the High Traction on the new model makes a noticeable difference. The Advanced Chassis also adds to the overall stability of the boot. These provide support in the heel and help you maintain traction, especially when going down steep, loose terrain.
For the vast majority of users, the X Ultra 3 provides plenty of traction. While there are a few boots out there with even better traction, most hikers won't need or notice a big difference.

The X Ultra 3's have surprisingly good traction on the slick, mossy boulders around Yosemite Valley.
Photo: Eric Bissell
Water Resistance
The X Ultra Mid 3 is an incredibly water-resistant model, and we were impressed by their performance in wet conditions. Somehow Salomon nailed the combination of mesh, leather, and GORE-TEX liner to create the most breathable and waterproof boot we reviewed. These shoes will shed water, even after being completely immersed for several minutes!
The tongue is connected to the boot with a lightweight, water-resistant membrane, keeping this gap-sealed in wet conditions. The X Ultra Mid 3 are comparable in this metric to boots with a more durable leather upper. We were struck by Salomon's ability to combine a lightweight design with reliable water protection in this boot.

We are stoked on the overall performance of the X Ultra 3's, especially concerning comfort and stability. They also feel light on our feet, which helps negotiate talus.
Photo: Eric Bissell
Durability
The PU-Coated leather and synthetic mesh that make up the uppers of these boots provide plenty of protection from the wear and tear of trail use. The toe box has a large-but-not-bulky protective rubber cap, as does the heel, which protects the foot. The thicker, more durable sole that the X Ultra 3 Mid inspires confidence that these have many trail miles ahead of them.
This model is nearly on par with the most robust boots we reviewed, as a burly boot fit for any conditions. The thoughtful combination of leather and mesh make the X Ultra durable, yet breathable. The X Ultra is fit for warm conditions, while still providing long-term protection from the elements. A burly yet breathable boot is something to get excited about!

Walkin' the line in the X Ultra 3s.
Photo: Eric Bissell
Value
The X Ultra Mid 3 lies in the middle of the road concerning price. Because they are well made and durable, these boots are a good choice for a boot that will last a long time and perform well in many conditions. We appreciate the reasonable price tag on these durable, burly boots, especially in our favorite model overall.

The aggressive tread pattern of the X Ultra Mid 3 makes them a great option for rugged terrain, from loose rocks to scree to boulder hopping.
Photo: Eric Bissell
Conclusion
Salomon has made a boot that impressed us with its durability, water resistance, and comfort. The X Ultra Mid 3 is well-padded, easy to break in, and provides more traction and stability than its predecessor. We are impressed with how these boots performed in all types of terrain, especially loose rock and steep scree, where we were able to maintain traction and stay on our feet with ease. Their ability to allow freedom of movement, while still providing the ankle support that is a staple feature of a hiking boot, makes the Salomon X Ultra Mid 3 GTX our Editors' Choice Award winner.

These boots styled all of our rating metrics, from comfort to support to water resistance.
Photo: Eric Bissell