Technical design

What is the difference between a conventional SUP board and a Yster coastal SUP board? Find out how our SUP-boards have been optimized for northern conditions.






Hard boards

Carbon and Wood


Light weight yet stiff


Composite design

Our hard boards have a light weight EPS core and top coating layers of fibre glass and carbon fibre reinforced epoxy. This provides a light weight yet stiff board design.

Pierces effectively through water


Displacement hull

A displacement hull is designed to effectively cut though water with minimum resistance. Most SUP boards have planning hulls made for surfing. Planning hulls are not ideal for flat water paddling since they are design to surf on the surface  – not cut through water.


Superior directional stability


Negative nose and low nose lift

The negative nose and low nose lift of our hard boards provide superior directional stability in choppy and windy conditions. The difference is remarkable when waves are coming in at an angle; traditional All-round SUP with a high nose lift will be caught by the waves and get carried away.



Extraordinary glide


Rocker line and cross sectional shape

The rocker line of our paddle boards is designed for maximum glide in flat waters. The middle section is double concave which effectively channels water from the nose under the board. This gives an outstanding glide. The tail is square and designed for optimal water flow release to minimize the drag that will slow down the speed of the board.

Stability and maneuverability


Rails and tail

The shape of the rails provides both stability and maneuverability. Also, the shape of the tail gives additional stability when paddling.




Low center of gravity

A voluminous paddle board becomes unstable if the center of gravity of the paddler is high above the water surface. To bring the center of gravity down the standing area is lowered. This design increases stability especially the static stability of the board.


Volume where it is needed


Volume distribution

Our paddle boards have a well balanced volume distribution to suit Nordic conditions. The voluminous front is perfect for downwind paddling to effectively keep the board above the surface. In addition, paddling into headwinds requires some volume in the front; our boards cuts smoothly through chop and wave while traditional SUP-boards typically get washed over by head-on waves.



Temperature control


Gore® Tex Vent

Our hard boards are equipped with Gore® Tex Vent to allow them to adapt to temperature fluctuations. This is important as overheating may lead to delamination. Even if the Gore® Tex Vent prevents delamination boards should not be left in direct sunlight for long periods of time.



Technical Design

Hard boards












Inflatable boards

Inflatable SUP





Fusion Drop stitch

Our Inflatable SUPs are inflated to high pressures (30 psi) which make them extremely hard and stiff.




Width and board shape

The width and board shape make our inflatable boards very stable. The large 9″ flat water fin also increases the static stability as well as stability during paddling.

Outstanding directional stability


Slim board design combined with unique fin setup

The combination of a slim board design, a nose fin and a large 9″ flat water fin give an unparalleled directional stability unique to Yster ISUPs.


Phenomenal glide


Board shape

Our ISUPs offers phonomenal glide thanks to the slim board shape.



Technical Design

Inflatable SUPs