Simmer Style Cortex

£1,949.00 £1,459.00


The brand new Simmer Style Cortex will change the way you look at an average day. Cortex features extremely short length and a narrow outline with diamond tail configuration. Combined with a very fast rocker, Cortex is extremely agile and tight turning. The parallel outline and smooth rail flow keep you in complete control during quick rail to rail transitions. Optimized for both sideshore and onshore real world conditions Cortex delivers snappy turns and quick reactions in the traditional windswell zones and can also be tuned to slice and dice in more side offshore down the line environments.

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The Simmer Style Cortex may be a new school short board, but it has a long history. The rocker, spiral v and concave profile has its roots in the original Simmer freewave board. When Kai Katchadourian needed a dedicated board for Peahi, aka Jaws, the controlled but still turny freewave shape was chosen to form the basis for the unparalleled speed and control that such a board requires. Freewave was a great hit and the dependable bottom shape has since been used in a variety of shapes in our prototype process. The most exciting of those designs became Cortex where the fast and controlled bottom, based on a progressive rocker flow  and double concave v bottom, is combined with a parallell outline and smooth rails. This creates a board that  is an awesome performer for real world conditions where it delivers snappy turns and quick reactions. Kai’s original spiral Peahi V-bottom heritage still shines through on rail stability and general control through rough conditions, yet Cortex and it’s short length and aggressive stance has changed the game forever.

Simmer Style Cortex Setup

Standard fin setup // TRI

The tri fin setup will provide early planing, great upwind tracking and ease of sailing while still providing a insanely tight turning radius. On the wave, this setup will give you the best possible projection and drive in turns, assisting the sailor in keep speed through the bottom turn, even in less powerful waves. Versatility and snappiess with a user friendly feeling are the main characteristics of this setup.

Alternative fin setup // QUAD

Equipped with a quad fin setup, the Cortex gets more planted and controlled at higher wave riding speeds. The power of the fin cluster acts further forward, which drives the front rail into the water and gives the board added control in draws out turns. At the same time, the shorter depth of the two rear fins makes it easer to set the rail at high speeds which means that the board feels more responsive in fast sideshore or cross offshore conditions.

Alternative fin setup // TWIN

With only two fins, drag is lower and the fin power acts further back on the board. This lifts the nose of the board which in a straight line adds further speed and gives more looseness and quicker reactions in turns. The combination of twin fin and the fast tail rocker provides great ability to set up the top turn either for slashy release or solid power hooks.


7821356Tri 2 x M105 + BT180 / Quad M95 + BT140 / Twin BT1505 x Slot box 3.4-5.06.5Kg
8421557Tri 2 x M105 + BT180 / Quad M95 + BT140 / Twin BT1505 x Slot box 3.7-5.36.6Kg
9021558Tri 2 x M105 + BT190 / Quad M105 + BT150 / Twin BT1705 x Slot box 4.0-5.66.8Kg
9921760Tri 2 x M105 + BT190 / Quad M105 + BT150 / Twin BT1705 x Slot box 4.2-5.96.9Kg

78L, 84L, 90L, 99L