The OP 4 is a high performance round tail for when the surf is on, yet a step up is not quite needed. This board has continual curve in the rocker for late drops and performance in square pockets. The plan shape has a continual curve to handle higher speeds and confidence in critical direction changes. The recommended length is 1-2 inches taller than your height. This model is highly recommend for your board bag. This board is not recommended for novices.

Standard Dimensions
5’6 x 18 1/2 x 2 1/4 – 23.20L
5’7 x 18 3/4 x 2 5/16 – 24.57L
5’8 x 19 x 2 3/8 – 25.96L
5’9 x 19 1/4 x 2 7/16 – 27.34L
5’10 x 19 1/2 x 2 1/2 – 28.82L
5’11 x 19 3/4 x 2 9/16 – 30.12L
6’0 x 20 x 2 5/8 – 31.78L
6’1 x 20 1/4 x 2 11/16 – 33.36L
6’2 x 20 1/2 x 2 3/4 – 35.04L
6’3 x 20 3/4 x 2 3/4 – 36.11L
6’4 x 21 x 2 7/8 – 38.59L

Performance Dimensions
5’6 x 18 x 2 1/8 – 21.49L
5’7 x 18 1/4 x 2 1/8 – 22.20L
5’8 x 18 3/8 x 2 3/16 – 23.31L
5’9 x 18 1/2 x 2 1/4 – 24.52L
5’10 x 18 5/8 x 2 5/16 – 25.75L
5’11 x 18 3/4 x 2 3/8 – 27L
6’0 x 18 7/8 x 2 7/16 – 28.28L
6’1 x 19 x 2 1/2 – 29.60L
6’2 x 19 1/8 x 2 9/16 – 30.96L

Available in Black C.A.T. construction.

What is Black C.A.T?

Black C.A.T. (Carbon Applied Technology) is Surfboard Factory Hawaii’s latest construction, designed to improve flexibility and performance. Using a hand-laminated process with carbon-infused resin. Instead of two layers, the board uses a single layer of cloth on the deck. The result? A board that flexes, snaps back, and keeps a familiar feel underfoot while maintaining durability.

Available in PU and EPS/Epoxy, Black C.A.T. can be custom ordered on any model. Built for surfers looking to push their performance further, Black C.A.T. delivers more flex than traditional full carbon fiber cloth boards. Quick, responsive, and agile – it’s performance with C.A.T. like precision.