Women's 105-Flex All-Mountain Alpine Boot with BOA
Tecnica W Mach Boa MV 105
The Tecnica W Mach Boa MV 105 is a 1,750 g (size 24.5) women's resort boot with a 100 mm medium-volume last, a 105 flex, and a GripWalk (ISO 23223) sole, built for advanced women who ski inbounds and want an even, dial-in fit. The W Mach Boa MV 105 replaces the lower buckles with a BOA Fit System that wraps the forefoot, and it has no walk mode.
Expert Fit Review
Fit profile and recommendations reviewed by CCBB bootfitters.
Is This the Right Boot for You?
Best For
Advanced to expert women skiers with medium-volume feet who ski inbounds, want a 105 flex for driving all-mountain skis, and prefer the even, micro-adjustable forefoot wrap of a BOA dial over traditional lower buckles.
Consider Another Boot If
You want to tour or skin uphill, need a walk mode and tech inserts, prefer the feel and simplicity of traditional buckles, have a narrow low-volume foot suited to another last, or want a softer flex.
CCBB Boot Ratings
Uphill Efficiency
No walk mode
Downhill Performance
105 flex, even BOA wrap
Walking Comfort
GripWalk rubber, fixed cuff
Transition Speed
Alpine boot, no transitions
Rating scale: 5 = top of its class, 4 = excellent, 3 = good, 2 = specialized or below average, and 1 = limited.
CCBB Fit Profile
Overall VolumeMedium
Toe BoxMedium
Forefoot VolumeMedium
Instep HeightMedium
Heel HoldGood
Ankle HoldGood
PunchabilityModerate
Heat MoldableYes
Why We Like It
- The BOA Fit System on the W Mach Boa MV 105 wraps the forefoot evenly with a micro-adjustable dial, reducing the pressure points that two lower buckles can create.
- The 105 flex drives all-mountain skis with confidence for advanced women, and the C.A.S. shell and liner are fully heat moldable for a custom fit.
- Two micro-adjustable cuff buckles and a 35 mm Velcro power strap secure the upper cuff and heel while the BOA handles the lower boot.
- The 100 mm medium-volume last fits average women's feet, with a women's-specific liner tuned for a lower calf and better warmth.
- The GripWalk (ISO 23223) sole adds grip and easier walking in the lodge and parking lot compared with a smooth ISO 5355 alpine sole.
Best Uses
- Inbounds resort and all-mountain skiing
- Advanced to expert women who want an even, dial-in fit
- Driving women's all-mountain skis 80 to 100 mm underfoot
- Medium-volume feet on a 100 mm last
- Skiers who get forefoot pressure points from traditional lower buckles
Bootfitter's Advice
The W Mach Boa MV 105 fits medium volume on a 100 mm last, with a women's-specific lower cuff, a snug heel pocket, and a medium instep. The BOA Fit System spreads lower-boot tension evenly across the forefoot, which we find helps skiers who develop hot spots under traditional buckles. The C.A.S. shell and liner heat mold, and we can punch the sixth-toe and navicular areas.
This is a resort boot with no walk mode and no tech inserts, so skiers who want to skin or tour should look at a Cochise W or a dedicated touring boot. The BOA dial adjusts on the fly but cannot be cranked as hard as an overtightened buckle, which is by design; think even wrap rather than maximum clamp. Confirm length and volume with a shell fit before buying.
Fit profile reviewed by CCBB bootfitters. Final sizing should be confirmed with a shell fit whenever possible.
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Technical Specifications
Manufacturer specs · Click to expand
Fit and Construction
- Weight
- 1,750 g per boot (size 24.5) per Tecnica.
- Last
- 100 mm (medium volume)
- Flex
- 105 (women's)
- Range of Motion
- None. The W Mach Boa MV 105 is an alpine boot with no walk mode.
- Shell
- C.A.S. polyurethane with Double Quick Instep
- Cuff
- Mono-injected polypropylene with T-Sport, women's-specific height
Features and Compatibility
- Walk Mode
- None. Fixed alpine cuff.
- Closure
- BOA Fit System lower with two micro-adjustable cuff buckles and a 35 mm Velcro power strap
- Binding Compatibility
- GripWalk (ISO 23223) alpine sole. Works with GripWalk and MNC (Multi-Norm Certified) alpine bindings. Not compatible with pin/tech touring bindings (no tech inserts) or with GripWalk-incompatible ISO 5355-only alpine bindings.
- Sole
- GripWalk (ISO 23223) alpine sole
- Forward Lean
- 12.0 degrees
- Liner
- High-performance women's-specific liner with adjustable tongue, heat moldable
Compare the Tecnica W Mach Boa MV 105
W Mach Boa MV 105 vs. Tecnica W Mach1 MV 105
Both are women's resort boots on the same 100 mm medium-volume shell with GripWalk soles and a 105 flex. The W Mach Boa MV 105 uses a BOA Fit System on the lower boot for an even, micro-adjustable wrap, while the W Mach1 MV 105 uses four traditional buckles for a familiar, high-clamp fit. Choose the BOA for even forefoot pressure, the buckle version for maximum clamp.
Shop Tecnica W Mach1 MV 105 boots
W Mach Boa MV 105 vs. Tecnica W Mach Boa MV 95
Both use the BOA Fit System on the 100 mm medium-volume shell. The W Mach Boa MV 105 runs a stiffer 105 flex for advanced to expert skiers, while the W Mach Boa MV 95 uses a softer 95 flex for intermediate to advanced skiers who want a more forgiving feel. Choose by how hard you ski.
Shop Tecnica W Mach Boa MV 95 boots
W Mach Boa MV 105 vs. Salomon S/Pro Supra BOA 105 W
Skiers cross-shop these two women's BOA resort boots. The W Mach Boa MV 105 runs a 100 mm medium-volume last with a C.A.S. moldable shell, while the Salomon S/Pro Supra BOA 105 W uses Salomon's own BOA layout and last shape. Both deliver an even forefoot wrap; pick by which shell matches your foot.
Shop Salomon S/Pro Supra BOA 105 W boots
Common Questions
Who should buy the Tecnica W Mach Boa MV 105?
The W Mach Boa MV 105 suits advanced to expert women skiers with medium-volume feet who ski inbounds and want a 105 flex with an even, dial-in fit. The BOA Fit System on the lower boot spreads pressure across the forefoot, which helps skiers who get hot spots from traditional buckles. It is a resort boot with no walk mode.
How does the BOA Fit System work on the W Mach Boa MV 105?
The W Mach Boa MV 105 replaces the two lower buckles with a BOA dial and stainless-steel lace that wrap the forefoot. You turn the dial to tighten in small increments and pull it to release. Two micro-adjustable buckles and a Velcro power strap still secure the upper cuff. The result is an even wrap rather than the concentrated clamp of a single buckle.
Does the W Mach Boa MV 105 have a walk mode?
No. The W Mach Boa MV 105 is an alpine boot with a fixed cuff and no walk mode. Skiers who want to skin or tour should choose a boot with a walk mode and tech inserts, such as the Cochise W or a dedicated touring boot. The W Mach Boa MV 105 is built for downhill skiing, not the uphill.
What bindings work with the W Mach Boa MV 105?
The W Mach Boa MV 105 has a GripWalk (ISO 23223) alpine sole. It works with GripWalk and MNC (Multi-Norm Certified) alpine bindings. It is not compatible with pin/tech touring bindings because it has no tech inserts, and it should not be used in ISO 5355-only alpine bindings that are not GripWalk compatible. Confirm your binding is GripWalk or MNC rated.
How does the W Mach Boa MV 105 fit and size?
The W Mach Boa MV 105 fits medium volume on a 100 mm last with a women's-specific lower cuff, a snug heel, and a medium instep. Length runs close to true Mondo size. The BOA wrap helps with a range of forefoot shapes, but confirm fit with a shell check rather than converting from street-shoe size.
Is the BOA dial durable, and what if it breaks?
The BOA Fit System on the W Mach Boa MV 105 is built for ski-boot loads and is covered by BOA's guarantee. The dial and lace are field-replaceable, and any Tecnica or BOA dealer can service them. In our experience the system is reliable, though it is newer than the decades-proven buckle, which is worth weighing if you want the simplest possible hardware.
How much does the W Mach Boa MV 105 weigh?
Tecnica lists the W Mach Boa MV 105 at 1,750 g per boot in size 24.5. That is a normal weight for a four-point women's alpine boot, and slightly more than the buckle-only W Mach1 MV 105 because of the BOA hardware. It prioritizes downhill support and fit over low weight.
Can the W Mach Boa MV 105 be heat molded and punched?
Yes. The W Mach Boa MV 105 uses a C.A.S. Custom Adaptive Shape shell and liner that our bootfitters can heat mold and punch for sixth-toe, navicular, and ankle relief. The BOA wrap and moldable shell together give us good range to dial in a comfortable, precise fit.
Is the W Mach Boa MV 105 better than a traditional buckle boot?
Not universally. The W Mach Boa MV 105 spreads lower-boot pressure more evenly than buckles, which many skiers find more comfortable, especially those prone to forefoot hot spots. Skiers who like to crank a buckle hard for maximum clamp, or who want the simplest hardware, may prefer the W Mach1 MV 105. It comes down to fit preference.
Our Verdict
The Tecnica W Mach Boa MV 105 is a resort boot that trades the two lower buckles for a BOA Fit System, giving advanced to expert women an even, micro-adjustable forefoot wrap on a 100 mm medium-volume last. The 105 flex drives all-mountain skis with confidence, and the C.A.S. shell and women's-specific liner heat mold for a custom fit. It has no walk mode, so touring skiers should look elsewhere, but for inbounds skiers who want a comfortable, dial-in fit, the W Mach Boa MV 105 is a strong option.
