When it comes to rugged, durable boots built for hiking and hunting in extreme mountain terrain, Kenetrek is one of the top brands on the market.
The Kenetrek Mountain Extreme line features the 400 and 1000 boots, two of their most popular models ideal for backcountry adventures. But with similar features and construction, how do you choose between the two?
In this in-depth review, we’ll compare the key factors between the Kenetrek Mountain Extreme 400 and 1000 boots. We’ll look at the materials, weight, insulation, traction, comfort, support, and more.
By the end, you’ll know which Kenetrek Mountain Extreme boot is the best choice for your needs and budget.
A Brief Comparison Table
| Feature | Kenetrek Mountain Extreme 400 | Kenetrek Mountain Extreme 1000 |
| Weight | 53 oz per boot | 64 oz per boot |
| Insulation | 400g Thinsulate | 1000g Thinsulate Ultra |
| Temperature Rating | Down to 15°F | Down to -40°F |
| Waterproofing | Wind-Tex membrane & waterproof bonded barrier | Wind-Tex membrane & waterproof bonded barrier |
| Traction | Vibram outsole with 5mm lugs | Vibram outsole with 5mm lugs |
| Support | Nylon shank, Kevlar midsole | Nylon shank, Kevlar midsole |
| Fit | Customizable fit, D or EE width | Customizable fit, D or EE width |
| Durability | 2.8mm nubuck leather, abrasion-resistant Kevlar midsole | 2.8mm nubuck leather, abrasion-resistant Kevlar midsole |
| Ideal Use | 3 season hiking & hunting boot | Mountaineering, cold weather hiking & hunting |
| Price | Around $430 | Around $500 |
Overview of the Kenetrek Mountain Extreme 400 and 1000
The Kenetrek Mountain Extreme 400 and 1000 boots share a burly, rugged build meant to stand up to the toughest mountain landscapes.
Both boast full-grain nubuck leather uppers reinforced with abrasion-resistant Kevlar midsoles and nylon shanks.
The boots are constructed using Kenetrek’s Wind-Tex waterproof breathable membrane.
The main differences come down to weight, insulation, and price point:
- Weight: The 400 weighs 53 oz per boot while the 1000 weighs 64 oz per boot
- Insulation: The 400 has 400 grams of Thinsulate while the 1000 has 1,000 grams of Thinsulate
- Price: The 400 costs around $430 while the 1000 costs around $500
With extra insulation and more heft, the 1000 is warmer and more durable. But the 400 gets you excellent durability and insulation at a lower weight and price.
Key Differences Between Kenetrek Mountain Extreme 400 And 1000 Boot
Now let’s take a more detailed look at each boot’s build, performance, and ideal uses.
- Materials and Construction
Both the Kenetrek Mountain Extreme 400 and 1000 boots feature premium, rugged materials ready for harsh alpine environments.
The uppers use 2.8mm nubuck leather, a rawhide leather that’s been brushed for softness without losing durability. Nubuck leather withstands abrasions well and provides better water resistance than suede.
Underneath the leather is a waterproof yet breathable Wind-Tex membrane backed by a waterproof and stain-resistant barrier. This combination keeps your feet dry without overheating.
The midsoles feature dense, supportive Kevlar laminated between layers of polyurethane. Kevlar reinforces the boots to prevent tears but adds minimal weight. It also resists cracking in cold weather.
For stabilization and support, nylon shanks run from the heel to the ball of the foot. You get torsional rigidity for secure footing over uneven terrain without a heavy steel shank.
The boots share durable rubber outsoles with aggressive 5mm lugs for traction. The heel brakes assist when hiking downhill.
For cushioning, impact absorption, and warmth, the boots have removable insoles made from polyurethane and wool felt. The wool felt manages moisture and resists odors.
- Weight
The main weight difference comes from the insulation. With 600 extra grams of Thinsulate insulation, the 1000 weighs almost 1.5 pounds more per pair.
Kenetrek Mountain Extreme 400: 53 oz per boot, 106 oz per pair
Kenetrek Mountain Extreme 1000: 64 oz per boot, 128 oz per pair
Those several extra pounds make a noticeable difference when hiking or hunting all day.
The 400 offers plenty of warmth while reducing fatigue compared to the 1000.
Yet the 1000’s heavier insulation makes it a better choice for extreme cold.
Hunting in frigid late-season weather or early season snow, the 1000’s extra bulk keeps your feet warmer without needing to layer excess socks.
- Insulation
Insulation level is the main factor setting the 400 and 1000 models apart.
The 400 boots have 400 grams of Thinsulate insulation. This midweight insulation provides warmth while maintaining flexibility. It’s perfect for fall hunting and hiking in cooler weather down to about 15°F (-9°C) when paired with a wool sock.
Meanwhile, the 1000 boots boast an impressive 1,000 grams of Thinsulate Ultra insulation, among the highest in the Kenetrek lineup. This heavy-duty insulation brings enough warmth for harsh alpine conditions down to -40°F (-40°C).
The trade-off is less breathability and flexibility in the 1000 versus the 400. However, the Wind-Tex membrane still wicks moisture outward. For very cold climates like areas of Alaska, the 1000 is your best choice. But for milder temperatures, the 400 supplies ample warmth at a lighter weight.
- Waterproofing
Both Kenetrek Mountain Extreme boots have excellent waterproofing thanks to the Wind-Tex membrane and waterproof bonded barrier.
Wind-Tex consists of a microporous membrane with pores smaller than water droplets but larger than water vapor molecules. Liquid water has trouble passing through the membrane, but vapor from sweat can escape outward.
This “breathable” barrier keeps your feet dry while preventing that sodden, swampy feeling you get with rubber boots. It withstands several years of heavy use before losing effectiveness.
Wind-Tex combines waterproofing and breathability at a lighter weight than leather alone. Backing the membrane is a waterproof and stain-guard treatment applied to the interior nylon and leather.
Together, you get boots that prevent outside moisture and water from seeping in. Unless you’re stomping through creeks, your feet stay dry all day. The waterproofing holds up through years of heavy use.
For occasional creek crossings, the nubuck leather withstands water exposure without damage. But full submersion shortens the lifespan of the water barriers.
- Traction
The Vibram outsoles provide top-notch traction that grips rough, rocky terrain. Both models use the same sole unit.
Widely spaced 5mm lugs give you stability and bite on loose, angled surfaces. They penetrate mud and debris for traction without picking up lots of material.
The heel brake assists when hiking downhill, letting you lean back without slipping. Pivoting and edge grip are excellent for hunting situations where you need to change direction quickly.
A flexible walking zone at the ball of the foot ensures a natural stride. Traction holds up well over years of use before lugs wear down excessively.
While not quite at mountaineering crampon level, the Vibram soles provide all the traction needed for most hunting and hiking terrain in the Western US and Alaska. The quality rubber compound resists cracking in cold weather.
- Comfort and Fit
Both Kenetrek Mountain Extremes provide all-day comfort thanks to customized fit options, flexible layers, and impact-absorbing midsoles.
The main comfort factor is the customizable fit. You can choose:
- Leather thickness
- Size (D or EE width)
- Insole style
- Insulation level
This flexibility ensures you get an ideal fit for your foot shape and needs. Size up or down if between measurements.
The 2.8mm nubuck leather breaks in to mold comfortably around your foot. Nubuck provides a supple feel without sacrificing durability like suede.
Inside, the polyurethane and wool felt insoles cushion your feet and wick moisture. Shock-absorbing Kevlar in the midsole prevents that leg-tiring, hard-sole feel of some hunting boots.
The 400 fits a bit sleeker and allows better flex thanks to less insulation. But both models work for all-day hikes once broken in. The customizable layers let you adjust insulation and snugness as needed.
For sizing, Kenetrek boots tend to fit true to size but avoid a tight fit. Order your typical size unless you’re between measurements. The boots mold to your feet after several hikes.
Break-in time averages one or two hunting or hiking trips. Some hot spots and stiffness are typical for the first uses. Here is a demo of the Mountain Extreme 1000!
- Support and Stability
Support comes from the snug leather fit, rigid midsoles, and nylon shanks. The result is excellent stability for handling uneven, rugged terrain.
The foundation of the boots comes from the Kevlar-reinforced midsoles. Kevlar adds rigidity to the polyurethane for terrain stability, preventing your feet from rolling. The dense cushioning also prevents bottoming out.
Nylon shanks running from heel to toe offer torsional support without excess weight. You get lateral and medial stability for bearing loads on angled surfaces like steep slopes or sidehills.
Underfoot, the deeply lugged Vibram soles improve stability on loose, irregular ground. The lugs penetrate debris for solid footing in mud or scree.
Finally, the snug leather fit enhances proprioception so you can subconsciously react to the terrain. The customizable insulation, fit, and footbed cater the boots to your needs.
The result is excellent stability for rocky, uneven terrain. Support holds up well when hauling heavy packs or game. Both the 400 and 1000 models provide plenty of rigidity for miles of off-trail hiking.
Also Read: Comparison of XTRATUF and Grundens Boots.
- Durability and Reliability
Both Kenetrek extremes live up to the brand’s reputation for unmatched durability and construction quality. They hold up for years of rugged mountain use.
Starting with the 2.8mm nubuck leather, you get premium abrasion and tear resistance. Nubuck stands up to brush better than suede without excessive care. Leather footwear when properly cared for can last decades.
Kevlar laminated into the midsoles prevents cracks, tears, and breakdown from repeated flexing. Kevlar adds reinforcement at a lighter weight than stiffer alternatives.
The Vibram outsoles resist delaminating or excessive tread wear over years of use. As with any rubber compound, durability depends on mileage and storage conditions. Avoid leaving the boots compressed in storage long-term.
With periodic cleaning and conditioning, the solid construction should provide a decade or more of reliable performance. The quality justifies the investment for those who spend lots of time off-trail.
- Price/Value
With MSRPs around $400-$500, Kenetrek Mountain Extreme boots sit at the top of the market for premium hiking and hunting footwear. But the long lifespan and top-tier performance make them worth the investment for serious backcountry users.
The boots cost two to three times more than options like Danner, Lowa, or Salomon. But they outlast those boots by years when cared for properly, justifying the higher initial cost.
The customizable fit and bombproof materials combination is hard to beat. If you spend 30+ days annually off-trail in rugged terrain, the Kenetrek extremes provide the best blend of protection, warmth, traction, and comfort. Infrequent hikers can get away with less costly boots.
Compared to boutique custom bootmakers, Kenetrek offers better value at lower prices. Small operation custom boots cost over $1000 yet lack the intricate construction and crampon compatibility.
For those who depend on their footwear, the Mountain Extreme boots provide the highest quality and lifespan on the market. The 400 hits a nice balance between warmth, weight, and price while the 1000 is ideal for cold climates.
- Ideal Uses
Kenetrek Mountain Extreme 400
The Mountain Extreme 400 works well as a year-round hiking and hunting boot in most locations outside polar and high alpine environments.
- Hiking: Provides all-day stability and comfort for off-trail hiking with 40-60 lb packs. Traction and torsional rigidity handle rocky, uneven terrain. Better breathability than the 1000.
- Hunting: Ideal for mid-season hunting from October through December across the Western US and Alaska. 400g insulation enough for temps down to about 15°F. Lightweight for stalking game.
- Climbing: Stiff midsoles edging combined Vibram soles make them suitable for basic climbing and mountaineering not requiring crampons.
- Winter use: Lack insulation for cold winter hiking/hunting. Best paired with heavy merino wool socks and gaiter for light snow.
With flexibility and lighter weight than the 1000, the 400 suits hunters and hikers covering rough, uneven terrain across most of the year. They excel as midweight, supportive backpacking boots.
Kenetrek Mountain Extreme 1000
With its extreme insulation, the Mountain Extreme 1000 specializes in cold-weather hiking, hunting, and mountaineering.
- Mountaineering: Excellent for technical ascents and multi-day expeditions requiring cold weather traction and support. Compatible with strap-on crampons.
- Winter hiking: Provides warmth and stability for snow hiking and mountaineering down to -40°F with proper layering. Keeps feet warm while active.
- Late season hunting: Ideal for late November through February hunting where you’re sitting inactive for long periods in frigid weather.
- Cold work: Supplies safety and warmth for long hours working outdoors in freezing temps, like winter guiding or surveying.
The 1000 boots work best in consistently frigid conditions where the insulation and weather barriers justify the extra weight. Use them where keeping your feet warm and dry is a survival necessity.
Also Read: Comparison of Crispi And Zamberlan Hunting Boots.
Frequently Asked Questions (FAQ)
For avid hikers and hunters who log lots of miles off-trail, Kenetrek boots are worth the investment. The durable leather and reinforced construction support years of hard use that would quickly break down cheaper boots. Kenetrek’s customized fit provides unmatched stability and comfort for covering uneven terrain while hauling loads. While the upfront cost exceeds $400, the long lifespan justifies the price for serious wilderness users. More casual users can find adequate performance and durability in boots under $300.
Kenetrek and Crispi make excellent leather hunting boots with similar quality and prices. Crispi boots feature stylish European design with excellent traction and comfort. However, Kenetrek boots stand out for their insulation and cold weather performance. Their combination of Thinsulate insulation bonded to the Wind-Tex membrane keeps feet warmer and drier. Kenetrek’s customizable fit and range of width options also best Crispi. So for hunting and hiking in extreme cold, Kenetrek comes out ahead. But for temperate climates, it comes down to personal fit and style preference.
Kenetrek boots tend to fit true to size as long as you select the proper width and insulation options for your needs. They construct each pair customized to order. To allow room for thick wool socks, you may want to size up a half or full size if your feet fall between normal widths. The leather does stretch and mold to your feet over time so avoid sizing down. Try to find a retailer that stocks Kenetrek so you can test the fit and sizing configuration that works best for you.
No, the Mountain Extreme boots use a nylon shank rather than steel. This keeps weight lower while still providing torsional rigidity and arch support. The stiff nylon shank combined with the rigid Kevlar midsole provides enough stability for off-trail hiking and hunting. Unless you’ll be wearing crampons daily in icy conditions, the nylon shank adequatley stabilizes the boots without adding bulk and metal detected properties.
Conclusion
When used for their intended terrain, the Kenetrek Mountain Extreme 400 and 1000 boots deliver unrivaled performance and longevity. Both models provide waterproofing, support, traction, and comfort ideal for off-trail pursuits in rugged landscapes.
Choosing between the two comes down to your climate and priorities for insulation versus weight. The 400 works year-round for temperate to sub-alpine use while the 1000 is built for extreme cold weather.
Whichever you choose, take care of the boots with regular cleaning and conditioning and they’ll provide a decade or more of reliable use. Compared to less costly hiking boots, Kenetrek’s offer a worthwhile investment for serious backcountry users that depend on their footwear.
