JS Industries HYFI Monsta Box Round Tail 5'9"
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JS Industries HYFI Monsta Box Round Tail 5'9"

  • $865.00

The global favorite: Monsta Box!
A careful hybrid between the  MONSTA 6  and the  BLAK BOX 2 .

 BRAND:  JS Industries
 CONSTRUCTION:  Hybrid Fiber Diamond (or HYFI)
 SIZE:  5'9" x 19 3/8" x 2 3/8"
 VOLUME:  27 L

In stock (Only 1 left in stock)
  • Weight
    15.0000 lbs
  • SKU


The Monsta Box Rounded Tail combines the down-the-line speed and maneuverability of the classic Monsta Box with the clean, pocket-friendly control of a rounded tail. A full-bodied shortboard that fits well into hollow faces but is just as rippable on the shoulder, this board is your go-to shape if you are as excited about riding barrels as you are boosting airs. The wide, curvy template goes well when groveling, but the control of the round tail holds lines in more powerful surf, making this a good option in just about any conditions. Combining this shape with JS’s signature HYFI construction materials creates a strong, light, rippable shortboard with enough spring and flex to make even the heaviest-footed surfer feel peppy.



Jason Stevenson and his JS label (famous for the tractor logo) have been producing some of the most high-performance surfboards on the planet for more than two decades. No one questions the design elements of these boards, and a number of guys on the world tour ride them, including Julian Wilson, Owen Wright, Adrian “Ace” Buchan and Joel Parkinson. But what many people don’t realize is that the technology that goes into the construction of the boards is just as cutting edge as their design.

JS offers their range of boards in the HYFI construction, which is a hybrid fiber technology. The product of two years of research and development, HYFI is the latest and greatest in surfboard construction advances, producing light, strong, fast surfboards that are more durable than polyurethane boards, but ride just as well. The flex out of the tail adds more drive and projection, the boards are 20% lighter than PU boards (making them faster and more maneuverable), and they simply don’t ding as easily as normal glassed PU boards. The result is the ultimate strength-to-weight ratio, applied to some of the best designs in the surfboard industry. In other words, the perfect board.

JS offers a number of popular models in the HYFI construction, including the Monsta 6, the Air 17, the Monsta Box, the Blak Box II, the Ghetto Cat, the Psycho Nitro and the Flying Pony. Here at Hawaiian South Shore, we are excited to carry a number of JS’s HYFI boards. Come check them out—I’ve already added one to my personal quiver!

  • Model
    HYFI Monsta Box Round Tail
  • Board Size
    5'0" - 5'11"
  • Brands
    JS Industries
  • Volume
    30 - 35