Armstrong Midlength MKII X-Form Foilboard

Armstrong • SKU 4897115087981
$2,249.99
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Highlights
  • X-Form tech for lighter, stiffer ride
  • Dual carbon stringers give direct foil feedback
  • Refined bottom contours boost early lift
  • Short, wide outline adds stability and control
  • Fully Foil Drive compatible

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Product Information

REAL Review

From Armstrong

The Midlength Mk II represents the next evolution in Armstrong board design. Built around an all-new molded construction process, it delivers a lighter, stronger, and more connected ride.

Refined through testing in demanding New Zealand conditions, it combines increased stiffness, reduced weight, and improved durability to create a board that performs consistently, session after session.

Specification ML 38 ML 45 ML 55 ML 65 ML 75 ML 85 ML 100 ML 115 ML 130
Length 4'8" 5'0" 5'4" 5'8" 6'0" 6'4" 6'8" 6'11" 7'2"
Width 18 ½" 18 ⅝" 19 ¼" 19 ⅝" 20 ⅜" 21 ⅜" 22 ¼" 22 ¾" 23 ¼"
Thickness 3 ¼" 3 ½" 4" 4 ¼" 4 ⅜" 4 ½" 4 ⅞" 5 ¼" 5 ⅝"
Volume 38L 45L 55L 65L 75L 85L 100L 115L 130L
Weight 3.65kg 3.8kg 4.0kg 4.2kg 4.5kg 4.8kg 5.2kg 5.7kg 5.9kg

Key Features

X-Form Technology

  • Exceptional weight to strength ratio
  • Formed in a single cycle with uniform pressure and temperature
  • Zero distortion with consistent shape every time
  • Approximately 0.5 kg lighter while remaining strong
  • Around 30% stiffer than the previous generation

Precision Molded Construction

  • Custom board specific steel molds
  • CNC machined to micron level precision
  • Uniform pressure and temperature during curing
  • Consistent shape and flex across every board

Lightweight, Durable Construction

  • Ultralight large sphere EPS core for maximum volume at minimal weight
  • Dual full length carbon stringers for rigidity and direct foil feedback
  • Carbon foil tracks integrated into the stringers
  • Full high density PVC wrap for strength and water resistance
  • Double PVC foot area with carbon outer layer for durability

Refined Shape for Easier Takeoffs

  • Thinner profile for a more direct connection to the foil
  • Shorter, wider outline for increased stability and control
  • Refined double concave to subtle V for early lift
  • Parallel rails and squash tail for efficient, stable takeoffs
  • New 115 L and 130 L sizes for larger riders or gusty conditions

Rider Focused Deck

  • Updated deck pads with triangle cutouts for grip
  • Dual foot arch bars and rear wedges for intuitive positioning
  • Foil track indicators for fast, consistent setup
  • Forward geometry foil tracks for manoeuvrability and connection

Improved Foil Drive Connectivity

  • Fully Foil Drive compatible
  • Foil Assist compatible window for clean, uninterrupted remote signal
  • Integrated deck design maintains reliable connectivity without compromising board construction
Ideal For
  • Winging
  • Downwind
  • Freeride
  • Foildrive

Built Stronger. Ride It Longer

The Midlength Mk II introduces a new approach to board construction, focused on long term performance and durability.

The molded process ensures every board is produced with consistent shape, flex, and strength, while significantly increasing stiffness and reducing weight. The result is a board that not only performs at a high level but maintains that performance over time.

Direct Connection

A thinner profile combined with increased stiffness brings riders closer to the foil, creating a more immediate and responsive feel.

Energy transfer becomes faster and more efficient, improving control through turns, smoother transitions, and more stable recoveries. The board feels smaller and more agile without sacrificing volume or stability.

Light Where It Matters

Reduced swing weight transforms how the board moves. It feels lighter in motion, easier to control through direction changes, and more responsive during pumping and manoeuvres.

This lighter, more agile feel allows riders to progress with confidence, while maintaining the stability expected from a midlength platform.

Pure Strength Construction

At the core of the Midlength Mk II is a construction built for real world use.

With multi density PVC rails, reinforced standing areas, dual carbon stringers, and integrated carbon foil tracks, every element is designed to handle repeated stress without fatigue or softening.

It is a board built to last, without compromising performance.

Calm, Connected Ride

On the water, the Midlength Mk II feels composed and predictable. The increased stiffness delivers a clean, connected sensation underfoot, allowing riders to stay fully in tune with the foil.

Touchdowns release cleanly, takeoffs feel efficient, and control at speed is improved. The result is a smoother, more intuitive riding experience across a wide range of conditions.


Package Includes:
  • Board
  • Board Bag
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Customer Reviews

Based on 6 reviews
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J
Jason Forrest
Quiver Killer

I've had the chance to ride the Armstrong Midlength MKII extensively, from winging in Chicama to parawinging on the Outer Banks, and it's one of the most versatile foil boards I've used.

The biggest improvement over the previous generation is stability. The wider shape and tail make water starts noticeably easier, allowing me to comfortably ride smaller volumes than before while maintaining excellent takeoff performance.

Once on foil, it feels fast, responsive, and capable across a huge range of disciplines, for me, mostly winging and parawinging.

The new X-Form construction is exceptionally light without sacrificing durability, and the reduced swing weight makes the board feel even more playful on the water. Combined with the comfortable, high-grip deck pad, the entire package feels premium.

Armstrong took an already great board and made it better. If you're looking for a true daily driver or one-board quiver, the Midlength MKII is tough to beat.

M
Mark S
Maybe The Perfect Midlength

I have had the chance to ride this board in 65L, 75L, 85L, and 100L sizes and it is exceptional. My only real complaint about the previous generation of Armstrong midlengths was that they could get pretty tippy side to side particularly when water starting. MKII is notably wider meaning that I could size down from a 75L in the old model to a 65L in the MKII with zero issues. The other notable feature is how light they are. The new X-Form construction is crazy light while still maintaining the durability that Armstrong is known for. After a month of abuse in the lesson and rental fleet we have seen slight pressure dings on the decks of the larger boards but no cracks or rail damage to speak of. The EVA foam on the deck is also fantastic. Lots of other brands make great midlength boards and then cheap out on the foam leading to scraped up knees or a dead feeling through the board. The Armstrong foam is very comfortable while maintaining good feel through the board. Also because of the triangle pattern cut into the foam, it feels like the board is gripping your feet rather than your feet gripping the board, which is kind of weird but also kind of nice. Overall I think Armstrong managed to make some great improvements on an already great design and I would recommend this board to any rider.

B
Brendan
One Board Quiver

I have been fortunate to test out this updated Armstrong midlength board and no longer think it should be called a midlength. This is your one board quiver or daily driver and has set the new standard. The old midlength was a shrunk down version of the downwind boards for faster take offs and the Wing and Surf models were also specific to the sport you were doing and relied on what the conditions were. This updated Armstrong board still has fast take offs, is thinner and paddles fast while maintaining more stability. It excels in every aspect of foiling and depending on what size you use can be used for everything. If downwinding, winging or light winds the larger volume sizes are perfect. For parafoil, foil drive, higher winds or prone downwinding or surf foiling the smaller sizes work great! I personally have been recommending the 75L and 65L to most advanced foilers and 100L to beginners. I personally ride the 55L the most but have sized down to the 45L as my daily driver for high winds para/wing/surf and on light wind days using the 65L for para foiling, wing foiling, foil drive and prone downwind runs. I find that the added tail width or squash tail is also helpful on landing airs and easier to ride with foil mast farther back for higher speed and more control on waves. The added bonus as foiling progresses is having no foil drive connection issues without sacrificing construction and durability for a board that you’ll always want to ride. If not sure on which size, I recommend taking a foil lesson to try out and easily swap sizes from our Armstrong Demo Center at REAL Watersports.

R
Randall
Huge upgrade!

I've been using the first version of the Armstrong Midlength board for years now and loving it. I use the 55L for winging on and the 75L for parawing. That first version board was already really good but this next version is genuinely a big step forward in the design. This board has more surface area and volume behind the track box which seems to really help a ton when water starting. A combination of that along with all the other design changes makes it feel much more stable when water starting both powered or especially when underpowered. It also builds forward speed much easier when underpowered. The X-Form construction is top tier as well. This board is crazy light and you really notice it in the bigger sizes. I really feel the difference in the weight savings in the 75L size for parawinging for pumping around to connect waves. The traction pad on the board is super cush; great grip and really comfortable on your feet/knees. The board bag is sturdy, fits well, and offers good protection. Really the whole thing top to bottom is fantastic. 5 Stars Armstrong.

M
Matt
Everyone can ride a Midlength now

The upgrades to the Armstrong Midlength MKII are really next level. The thinner, shorter, wider shape with a wider tail block makes this board far more stable than the previous version. The MKII takes off the water with less effort than the previous version too.

The new X-Form construction is as light as a performance construction but much stronger than any board I have ever used. I have flown wth this board, left it in the back of my truck, dropped it in the parking lot and still no dings, cracks or chips. Super stiff, lightweight and super strong is unheard of.

I am 170lbs and mostly use the 75L for parawinging and winging. I use to use my midlength for light wind winging but this wing is so responsive that it feels like a much sportier board when you are riding it. I find myself riding this 75L in all conditions and loving it. So easy to take off but still so responsive. For parawing, It has been a lot more stable and the touch downs are still next level.

With the new board construction this board has 100% connectivity with Foil Drive. I love the 55L and the 75L and I am shocked by the ease of use and performance.

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