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The Armstrong Midlength FG Mk II 2026 marks a major leap in Armstrong board design, introducing the new X-Form technology (Precision Molded Board Technology).It is lighter and offers a more direct connection to your foil. This represents a significant advancement in durability and responsiveness, and it also extends longevity. Refined over years in New Zealand's demanding conditions, the Midlength Mk II combines the signature Armstrong feel with an unprecedented level of control and consistency. Available in 9 sizes from 4'8-inch (38 L) to 7'2-inch (130 L), this board covers all your riding disciplines: Wing Foil, Prone, Foil Assist, and SUP Foil.
KEY INFORMATION
ARMSTRONG MIDLENGTH FG MK 2 2026
What we like
- New X-Form technology: proprietary rigid CNC molds and single-cycle molding ensure every board is identical.
- Dual Carbon Stringer System: top-to-bottom carbon i-beams for maximum stiffness and durability.
- Refined X-Form profile: a thinner board for a more direct connection to your foil, reducing touch-downs.
- Forward Geometry foil track: the foil is placed further forward, reducing swing weight and increasing responsiveness in turns.
- Foil Drive compatible: an integrated remote signal window ensures interference-free control.
- Reinforced construction: a high density PVC wrap (interior + rails), a double sandwich PVC deck area, and a carbon outer withstand violent landings and prevent water absorption.
Available sizes
Included / Not included
Included: Armstrong Midlength Mk II 2026 board, a full pre-glued pad on the board, footstrap inserts, and an Armstrong boardbag.
Not included: Leash, footstraps.
Use
Wing Foiling ▶ Prone Foil ▶ Foil Assist ▶ SUP Foil (large sizes)
Test and review
Armstrong Midlength MKII 2026: test & review (Hydro Gav review)
Armstrong Midlength MKII 2026, tested at 4.52 kg in 85 L by Hydro Gav: lighter and more forgiving than the V1.
Updated 20/07/2026 Read the full review
DETAILED DESCRIPTION
X-Form: Precision Molded Board Technology
X-Form (Precision Molded Board Technology) was developed by Armstrong to reduce weight while solving durability and consistency challenges in board manufacturing. Each Midlength Mk II is formed in a single cycle, under uniform pressure and temperature, with zero distortion. Rigid proprietary CNC molds and internal components machined to exact tolerances ensure that each board comes out identical: the desired behavior is preserved, providing predictable performance from one session to the next.
Reinforced Dual Carbon Stringer Construction
The entire interior of the board is wrapped in high-density PVC: even in the event of a crack, water is not absorbed as with classic EPS. The Large Sphere EPS core is molded under high pressure for maximum stiffness, while the HD PVC rail wraps protect the most exposed areas. The foot placement area is reinforced with an additional PVC panel to absorb the most violent landings. The i-beam Dual Carbon Stringers connect the deck to the bottom for absolute structural stiffness, and the carbon foil tracks are keyed directly into these stringers for a perfectly integrated construction.
Refined X-Form Profile, Direct Foil Connection
Thanks to the new X-Form construction, the refined profile of the Mk II offers a much more direct connection to your foil and drastically reduces unwanted touch-downs. The volume distribution is optimized to maintain stability and balance while keeping the board lower on the water, resulting in a sharper, more connected feel, more feedback, and confidence in all conditions.
Bottom Design, Squash Tail & Forward Geometry
The new bottom combines a subtle double concave transitioning to a V at the rear to generate early lift, smooth out touch-downs, and cleanly release the foil. The less pronounced edges and the flatter rear reduce drag. The surf-style squash tail provides stability from the start and keeps the rails parallel longer, which accelerates speed. The Forward Geometry places the foil tracks further forward to reduce swing weight and increase handling, while remaining compatible with any foil brand.
TECHNICAL SPECIFICATIONS
| Size | Length | Width | Thickness | Volume | Approx. weight |
|---|---|---|---|---|---|
| ML 38 | 4'8-inch | 18 ⅛" | 3 ¼" | 38 L | 3.65 kg |
| ML 45 | 5'0-inch | 18 ⅝" | 3 ½" | 45 L | 3.80 kg |
| ML 55 | 5'4-inch | 19 ⅛" | 4-inch | 55 L | 4.00 kg |
| ML 65 | 5'8-inch | 19 ⅝" | 4 ¼" | 65 L | 4.20 kg |
| ML 75 | 6'0-inch | 20 ⅜" | 4 ⅝" | 75 L | 4.50 kg |
| ML 85 | 6'4-inch | 21 ⅜" | 4 ½" | 85 L | 4.80 kg |
| ML 100 | 6'8-inch | 22 ¼" | 4 ⅞" | 100 L | 5.20 kg |
| ML 115 | 6'11-inch | 22 ¾" | 5 ¼" | 115 L | 5.70 kg |
| ML 130 | 7'2-inch | 23 ¼" | 5 ⅝" | 130 L | 5.90 kg |
Approximate weight may vary due to manufacturing tolerances. Source: Armstrong Foils 2026.
VIDEOS
| Specifications | |
|---|---|
| Brand | Armstrong Foils |
| Model | Midlength FG Mk II 2026 |
| Year | 2026 |
| Construction | X-Form, Precision Molded Board Technology |
| Stringers | Dual Carbon Stringer System, i-beam top-to-bottom |
| Core | EPS ultralight Large Sphere (high-pressure molded) |
| Inner Wrap | High density PVC, water anti-absorption |
| Outer | Carbon |
| Rails | High density PVC wrap around the entire perimeter |
| Foot support area | Double reinforced PVC sandwich |
| Foil tracks | Carbon, Forward Geometry (FG), keyed into the stringers |
| Foil Compatibility | All brands (US standard foil tracks) |
| Foil Drive Compatibility | Yes, integrated remote signal window |
| Hull Shape | Displacement hull, easy planning when paddling |
| Bottom | Double concave to V, reduced edges, flat at the back |
| Tail | Surf-style squash tail |
| Deck grip | New pad, raised wedges, arch bars, light weight |
| Vent | Yes (internal pressure regulation) |
| Footstrap | Integrated inserts, straps not included |
| Available sizes | ML 38 / 45 / 55 / 65 / 75 / 85 / 100 / 115 / 130 |
| Discipline | Wing Foil, Prone Foil, Foil Assist, SUP Foil (large sizes) |
| Supplier reference | 26-00017-000 |
| Included | Board + pre-glued pad + footstrap inserts + Armstrong Boardbag |
FAQ, ARMSTRONG MIDLENGTH FG MK 2 2026
The Midlength Mk II is a versatile board designed by Armstrong for intermediate to expert riders who want a single board capable of covering multiple riding disciplines: Wing Foil, Prone Foil, Foil Assist, and SUP Foil (for larger sizes). Its surf-inspired midlength outline offers a great compromise between glide and stability, while also providing excellent handling.
The Mk II introduces the new X-Form construction, a precision CNC molding process in a single cycle, under uniform pressure and temperature, using proprietary rigid molds (unlike flexible fiber molds that can deform). According to Armstrong, this results in a significantly thinner profile, a stiffer board, more durable, and lighter for the same volume, with a more direct connection to the foil. The range also expands with two additional sizes (115 L and 130 L) not available in the Mk I.
The choice depends on rider weight and primary discipline. Here are some guidelines:
- 38 L to 55 L: Ideal for Prone Foil and Wing Foil for light to advanced riders in strong wind.
- 65 L to 85 L, versatility for Wing / Prone / Foil Assist for riders 70-90 kg
- For riders between 75 L and 100 L, Armstrong recommends the Midlength Mk II for a Foil Drive setup, with additional volume for enhanced balance, easier take-offs, and smoother recoveries.
- The 115 L and 130 L sizes are perfect for SUP Foil and very light wind Wing sessions, catering to heavier riders or those still learning the ropes.
If you're in doubt, don't hesitate to contact us: our expert advisors will guide you to the perfect board based on your skill level, weight, and riding style.
Yes, absolutely. The board features a dedicated remote signal window, ensuring a clear, interference-free connection with your Foil Drive unit. Armstrong specifically recommends the 75 L to 100 L sizes for an optimal Foil Drive setup, as the additional volume aids in balance and recovery.
No. The board has integrated strap inserts but the footstraps themselves are not included. You can use Armstrong footstraps sold separately or those from your preferred brand.
Armstrong confirms that the Midlength Mk II is compatible with any foil system that uses standard US foil tracks. For an optimized experience, pairing it with an Armstrong foil (MA Mk II, HA, UHA, S1) or a Foil Drive system is recommended by design.
Progressive availability depending on sizes. Consult the size selector above for real-time availability or estimated delivery time. For pre-order sizes, your order is secured and prepared upon receipt of stock at Armstrong.
GlissEvolution has over 20 years of boardsports expertise. Our passionate advisors test gear at La Baule and Pornichet. We offer responsive after-sales support based in France, a 2-year warranty, free shipping on orders over €150 (conditions apply, excludes oversized items, shipping costs shown at checkout), and in-store pickup in Pornichet.
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