The Armstrong Wing SUP FG Foil Board is a top choice foild board for those looking to get into winging, or even SUP foiling. It provides a stable base of the foil, with a recessed deck for foot placement awareness. 

Here's what Armstrong say;

Size- 5'8"x25"x4 7/8"   99L
Forward Geometry… Our new A+System Mast Tracks are positioned well forward in the board to reduce rotational swing weight which radically improves handling and response.
High strength custom Carbon fiber A+System Mast Tracks… Plastic simply does not do the job well enough, so we designed our own 320mm Carbon Fiber mast tracks.
Recessed deck… This brings you closer to the mast top for direct handling and feel.
Through deck carry handle/water evacuation… Easy to carry top or bottom, the through board handle is also the water evacuation for the recessed deck.
Extended waterline profile view… Speed is the key, so we use all the boards waterline to help accelerate the board forward.
Chisel-nose outline… Offers stability on the water and helps push the water under the board rather than splitting it around the board.
Aggressive nose rocker into an accentuated double concave to flat… This is all about bringing the nose up quickly to accelerate the water down the double concave to flat bottom at the tail.
Innovative tail shape… For better acceleration, less drag at the rear waterline release area, it looks faster because it is!
Accentuated chines… As the board picks up speed and the foil starts to lift, the contact area reduces, making for a smooth transition from on the water to foiling and also seamless touchdowns as the board does not grab as it touches the water’s surface.
Stable Volume distribution… The recessed deck, wide Chisel nose and relatively rectangular outline means we can push the volume to the extremities, makes for a stable platform when on the water.
Light and strong… Lightweight is nothing without strength so we have chosen the best materials to keep the boards both light and strong. Foam core with multiple PVC reinforcements, Dual Carbon stingers, covered with Carbon fiber and Dyneema cloth.