Yster ISUP 12’6″x 23″ Linear


Yster ISUP 12’6″x 23″ Linear is the perfect board for lightweights – both for light adults and junior SUP paddlers.

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SKU: YSID1074 Categories: ,


ISUP 12’6″x 23″ Linear

The optimal board for lightweights.

Yster ISUP 12’6″x 23″ Linear is the perfect board for lightweights – both for light adults and junior SUP paddlers. That is why the Swedish Canoe Association selected Yster ISUP 12’6″x 23″ Linear for its youth initiative Yo! WhatSUP to develop SUP paddling among youngsters.


  • Advanced MSL Fusion technology that allows a maximum technical pressure of up to 30 psi.
  • Drop-shaped outline for perfect hydrodynamics.
  • The length of 12’6″ in combination with a flat rocker provide phenomenal glide and directional stability.
  • The width of 23″ is a perfectly balanced for both glide and stability.
  • The thickness of 15 cm provides rigidity longitudinally. This, in combination with the high pressure, means that the board does not “go bananas”.
  • The fin box is placed far back for better directional stability.
  • Well-balanced volume of 234 liters for optimal carrying capacity, glide and rigidity.
  • Beach-start handles.
  • Front D-ring attachments for the leash, which many paddlers prefer in technical racing.
  • Extra long pad  – no slipping.
  • Kick pad at the tail.
  • Front and rear D-rings for towing. The rear D-ring is also a leash attachment.

This is a really fast SUP for light adults as well as a junior SUP paddlers.


  • Inflatable SUP 12’6”x 23”
  • Yster backpack.
  • SUP-pump with pressure gauge
  • Single center 9” flat water fin
  • Repair kit with repair patches and valve key
  • Design: Fusion Dropstitch and standard US fin box.
  • Length: 12’6” (381 cm)
  • Width: 23” (58.4 cm)
  • Height: 5” (15,2 cm)
  • Volume: 234 liters
  • Weight: 8.2 kg
  • Recommended pressure normal usage: 20 psi
  • Maximum inflation pressure: 26 psi
  • Maximum technical  pressure: 30 psi

Directional stability

Directional stability means how straight the board tracks in the water. In addition to the shape of the board, directional stability are also affected by e.g. wind, waves, currents, fin design and fin positioning, paddler’s position on the board and paddling technique.


Glide means how effortlessly the board moves in the water. In general, the longer and slimmer board, the better glide, but the shape and rocker of the board also has a great impact on the water flow characteristics. Other factors that affect the speed of the board are wind, waves, currents, fins, paddler’s positioning on the board and paddling technique.


Stability indicates how stable the board is to stand and paddle on. The static stability, i.e. when standing still on the board, is in essence affected by its width, bottom profile and fin size. The dynamic stability – when the boards travels in the water – is also affected by its width, bottom profile and fin size but also by the shape of the tail. As a result, Yster’s boards feel more stable, even though they are long and narrow. Other external factors that affect the perceived stability are wind, waves, currents, fins and paddler’s positioning on the board.
The number gives an relative indication of the weight of the characteristics.


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