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7S Hook IM


SKU: 7SHOOK Categories: , , , Tags: ,



7S Hook  IM

Available in 5’6′, 5’8″, 5’10”, 6’0″, 6’2″ & 6’4″

Available in Spring 2019

The Hook merges some old and new surfboard design characteristics to offer a fast, yet highly functioning hybrid twin fin surfboard that will unlock a whole new approach to your surfing. This twin offers the confidence to turn without having to compromise power.

OUTLINE: We’ve put a modern twist on the traditional fish outline. It’s still relatively full upfront, but it narrows considerably through the tail. This promotes an easier rail-to-rail transition and allows the rail to engage and bite into the wave face when turning with more force.

ROCKER: Considered medium-to-low, which has its advantages when generating speed and acceleration in softer conditions, however, there’s enough curve to surf closer towards the pocket and still confidently draw a longer line on more open face waves.

CONTOURS: Featuring the signature 7S step-deck to ensure maximum buoyancy under the chest while maintaining a lower rail for sensitivity. Forward vee displaces water efficiently from the wider nose and helps eliminate any sticking feeling when driving down-the-line. Vee transitions into a single/double concave combo through the back offering a nice feeling of sensitivity and liveliness when making more critical turns.

FINS: Fin placement is a key ingredient with this board. They’re positioned further back compared to most twin models on the market. This eliminates any sketchy feeling when driving through a bottom turn, improves overall backhand performance, and adds control so the board can be surfed in bigger waves.

Fin Recommendations:
FCS II Modern Keel – Controlled feel.
FCS II Power Twin – Looser feel.

PERFORMANCE: Like with most twin models, the first thing you’ll notice is the speed and the freedom in which it turns and pivots. But, what separates the Hook is that it offers an underlying feeling of security and poise when loading up the fins, i.e. It won’t feel like it’s going to skip out. This is not just a small wave board, it can be surfed confidently in overhead waves. It’s hard to go back to three fins once you ride the Hook!

Length Width Thick Volume Fins (Recommended NOT Supplied) Approx Weight Range
(Based On Novice To Intermediate Skill Level)
5’6 20 1/8″ 2 3/8″ 29.20ltr FCSII Modern Keel (Controlled feel) FCSII Power Twin (Loose Feel) 70kg / 154lb or less
5’8 20 3/8″ 2 7/16″ 31.30ltr FCSII Modern Keel (Controlled feel) FCSII Power Twin (Loose Feel) 75kg / 165lb
5’10 20 5/8″ 2 1/2″ 33.40ltr FCSII Modern Keel (Controlled feel) FCSII Power Twin (Loose Feel) 80kg / 176lb
6’0 20 7/8″ 2 9/16″ 35.60ltr FCSII Modern Keel (Controlled feel) FCSII Power Twin (Loose Feel) 85kg / 187lb
6’2 21 1/8″ 2 5/8″ 38.20ltr FCSII Modern Keel (Controlled feel) FCSII Power Twin (Loose Feel) 90kg / 1198lb
6’4 21 3/8″ 2 11/16″ 40.60ltr FCSII Modern Keel (Controlled feel) FCSII Power Twin (Loose Feel) 95kg / 209lb +


GSI 7S Image


Construction Innegra MatrixCreated in collaboration with Colan Australia, Innegra Matrix (IM) is an exciting new material that’s exclusive to GSI and the 7S board range. IM consists of 3oz bi-axial fiberglass orientated at +/- 45 degrees, an Innegra cross-net woven through the fiberglass, plus 13 unidirectional carbon strands, all of which forms a single layer of fabric that’s laminated on the bottom of the board. The deck lay-up has a quad-axial configuration of fiberglass at +/- 45 degrees & standard 4oz fiberglass at 0/90 degrees. With this build, we also use a high density EPS core tha’s cut and finish shaped, and a special ultra bright epoxy resin. Overall this construction helps to control the boards torsional flex (twisting), while the carbon strands control the longitudinal flex. As a result, we still achieve that ‘pop’ and ‘lively’ feel from the EPS core, but with an underlying feeling of control and dampening that’s closer to a traditional PU board. Less chatter, more dampening = smoother through turns.
You can find out more about GSI’s surfboard construction on our surfboard construction page.
Board Concave Vee to Single / Double Concave
Rail Step Deck / Medium Rail
Rider Skill Level IntermediateAdvanced
Wave Height 1-6ft Waves


PLEASE NOTE! Surfboards are not included in our Free shipping program! After we receive your order, we will contact you to confirm availability and final shipping costs. Average shipping is approximately $100.00. There are no additional shipping charges on boards picked up at the Shop……..


Additional information

Weight 50.0 lbs
Dimensions 76 × 24 × 10 in

5'10, 5'6, 5'8, 6'0, 6'2, 6'4