Armstrong Downwind Mk III SUP-Foil Boards 2025
$2,299.99 – $2,499.99Price range: $2,299.99 through $2,499.99
The Armstrong Downwind Mk III
Downwind progression starts here.
The Downwind Mk III board is all about progression whether you’re just figuring out downwinding or pushing the limits of surfing downwind in short period skatepark conditions. The displacement hull design works wonders to increase paddling speed and help you get on foil, and the refined outline keeps things fun once you’re flying.


Glide
Bump catching made easy.
The speedy new displacement hull makes getting onto bumps easier than ever. It’s quick and efficient so you can get up to speed without needing perfect paddling technique or heaps of strength.
A goldilocks ratio of dimensions and volume makes for optimum glide, stability and maneuverability so you don’t need to be a pro to up your time on foil.
Responsiveness
Lay down carves.
The Mk III’s outline is shorter and slightly narrower than the prior Downwind board for improved maneuverability when on foil. Combined with the Forward Geometry foil tracks, that means you’ll be carving harder and pumping more efficiently.
Comfort
No sacrifices for performance gains.
Despite the reduced dimensions, the Mk III remains comfortably stable thanks to its rounded rails and flatter deck with increased standing room. The new rail shape makes the board’s roll stability more consistent and comfortable so you don’t find yourself suddenly thrown off balance.




FEATURES
- Displacement hull: Efficient paddling to get on foil easily.
- Mini squash tail: Keeps dimensions compact with a clean release.
- Flat deck: More foot placement options and increased volume per size.
- Split foredeck: Sheds water with ease.
- Vent: Maintains integrity of the board on hot, sunny days.
- Raised deck wedges and arch bars: Dual central arch bars and rear corner blocks provide intuitive foot placement references.
- New deck grip: Grippy, comfortable, and lightweight.
- Forward Geometry Foil Track: Our proprietary Forward Geometry foil track increases responsiveness by placing the foil more centrally and reducing swing weight in turns.
- Carbon PVC Sandwich construction: Strong and super durable for endless shuttle laps.
- Dual Carbon Stringer System: Deck to bottom i-beam dual stringers provide maximum structural rigidity and durability.
- Carbon foil tracks: Proprietary carbon fiber foil tracks are keyed directly into the fibers of the stringers for a fully integrated construction.
DIMENSIONS

Only logged in customers who have purchased this product may leave a review.
SHIPPING WITH BIG WINDS
Rates, Common Questions, and Our Fastest,
Safest, Money Saving Board Delivery Ever!

U.S. SHIPPING RATES
Rates apply to mainland U.S.
Transit time calculated in business days.
ITEM/ORDER | 7-10 Days | 3-6 Days | Need It Quicker? | |||
---|---|---|---|---|---|---|
Orders Less Than $100 | $15.00 | $24.99 | By Quote | |||
Most Orders of $100 or More | Free | $24.99 | By Quote | |||
EXCEPTIONS | ||||||
All Used Gear (U.S. Only) | Shipping Rate is Cited on Product Pages | |||||
Wing Foil Boards | $99 to Nearby Major Airport Freight Facility | |||||
Downwind SUP Foil Boards | $99 to Nearby Major Airport Freight Facility | |||||
Windsurf & Wsurf Foil Boards (10' and Under) | $99 to Nearby Major Airport Freight Facility | |||||
Inflatable Boards (SUP & Wing) | $50 | $75 | By Quote | |||
Directional Kitesurf & Kite Foil Boards | $50 | $75 | By Quote | |||
SUP Paddles | $35 | $50 | By Quote | |||
Board Bag: Flat Day Bags | $35 | $50 | By Quote | |||
Board Bags: Wheeled/Walled Bags | $65 | $99 | By Quote | |||
Windsurf Sails 7.0 meter or Larger | By Quote | |||||
Windsurf Masts 460 cm or Longer | By Quote | |||||
Alloy Windsurfing Booms 150 cm or Larger | $35 | $50 | By Quote |
COMMON QUESTIONS

Where's My Order's Tracking Link?
Tracking info is shared via email within 72 hours of most orders being placed. Be sure to check spam or "Promotions" folder in your Inbox, as sometimes our messages land there.
No Tracking Info Displays on Shipper's Website ...
It can take 48 hours for tracking info to display. Rest assured, your package is en route. Make sure to enter the BOL # (Bill of Lading) with no spaces in the tracking field.

Alaska, Hawaii, Puerto Rico?
Yes, we have shipped to these locations for decades by quote. Please share your address, the item(s) you needed shipped, and if an airport cargo depot pickup is possible.
Canada and International Locations?
We ship to Canada lots, and the Caribbean some. Get a quote. We rarely ship items to Europe, Asia, and Australia as it's spendy. Quotes for international orders do not include import duties.

How Can I Be Sure My Board Arrives Intact?
Opt for our $99 "To Nearby Airport" shipping option at checkout. It relies on passenger planes, and offers our safest delivery. More far below.
What if My Board Arrives Damaged?
We'll work with our shipping partner to get you a repair credit or a replacement board. Please send photos of the damaged board (and box) to shipping@bigwinds.com.

My board made it ...
But no foot straps, fins, or vent plug?
Look closely through the packaging. Fins, foot straps and vent plugs are often concealed in a sheath of cardboard that's easy to discard. Also, check inside the board box, and shake the box to be sure. You'll likely dislodge a small box containing the missing items.
HOW WE SHIP BOARDS

OPTION 1
MAINLAND U.S.
NEARBY MAJOR AIRPORT, $99
Fast
Boards depart Thursday each week, and are available for pickup Friday or over the weekend.
Safe
Minimal handling, and processing. No trucks, or gritty freight facilities. We ship using passenger planes, and direct flights when possible.
Easy
Most airport cargo depots are just far enough from main terminals to allow free parking, and easy entry. Pickup instructions and tracking info are shared via email Friday morning.
Which Major Airport is Near Me?
This link to Alaska Airlines’ options is a starting point. If no nearby options exist, we'll work with American, United and Delta airlines for a closer solution. Questions? Contact us!

OPTION 2
ALASKA, HAWAII, PUERTO RICO
NEARBY MAJOR AIRPORT, $150
Fast
Boards depart Thursday each week, and are available for pickup Friday or over the weekend.
Safe
Minimal handling, and processing. No trucks, or gritty freight facilities. We ship using passenger planes, and direct flights when possible.
Easy
Most airport cargo depots are just far enough from main terminals to allow free parking, and easy entry. Pickup instructions and tracking info are shared via email Friday morning.
Which Major Airport is Near Me?
This link to Alaska Airlines’ options is a starting point. If no nearby options exist, we'll work with American, United and Delta airlines for a closer solution. Questions? Contact us!

OPTION 3
BUSINESS OR RESIDENTIAL DELIVERY
BY QUOTE
Residential or Business Board Delivery
We'll work with freight partners for the lowest possible rate. Delivery time is 7-10 business days. Quotes typically land in the $350 - $500 range, though Big Winds will often cover a portion of this fee. Get a quote.
International Board Delivery
Board shipping rates for most international destinations are extremely pricey. But we can ship boards to Canada for as low as $275 plus duties and taxes. We can also stow your board for an upcoming Gorge visit, and help with a board bag and packing materials to ensure it flies home with you safely.
Reviews
There are no reviews yet.