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Lib Tech x Lost Hydra Surfboard + Tri Large Fin Set

sku# 191546
Lib Tech - x Lost Hydra Surfboard + Tri Large Fin SetLib Tech - x Lost Hydra Surfboard + Tri Large Fin SetLib Tech - x Lost Hydra Surfboard + Tri Large Fin SetLib Tech - x Lost Hydra Surfboard + Tri Large Fin Set
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Product Info


Lib Tech x Lost Hydra Surfboard

Hungry for small waves, the Lib Tech x Lost Hydra Surfboard is a grovel machine. With more than 25 years of experience developing small wave fish and hybrid boards, Matt Biolos defies hydrodynamics with this minuscule wave masher. Whether you are coming off a longboard or looking to make the most out of summer mush, a split diamond tail combined with a unique double concave Hydra Hull will give you little doubt about the capabilities of this board in middling conditions. Forget chasing barrels, the Lib Tech x Lost Hydra Surfboard makes any wave a dream wave.

Product Details


ecoIMPACTO Surf ConstructionCompletely new to the surf industry. Lib Tech's Thermo fusion process radically minimizes resin exposure and sanding while creating amazingly durable, environmentally friendly, high performance surf structures that will free your mind and lift your surfing to new heights.


Hydra HullThe bottom contours feature a unique double concave, chined “Hydra-hull”. It allows the use of more curve through the rocker which makes proper turning and vertical surfing a lot easier by cutting through and adding lift and speed.

Fish OutlineOn the outline, Lib / Lost continued with the snowboard influenced “Pelagic” side cut outline. Every board featuring this outline has worked above expectations. It noticeably locks into the wave during carves and shortens the radius of turns while both gaining speed and maintaining control.

Split Diamond TailCombines the best of diamonds and swallows. The notched-out center line adds bite and control to a wide tail. The double diamond tail shortens the rail line making quick and radical, power retaining turns much more manageable

Flat-ish Deck with Full and Forgiving RailsFlat decks can remain thinner and still retain volume, and more importantly, are more flexible (even if thick) than vee or dome decks. Flex is good in low rocker boards, keeping them pliable and forgiving.

Low Rocker

Fin Layout

FOC II Fin Box SystemA stronger and lighter box that's two tab compatible with 1/2" fin adjustability for precise tuning of your boards surf characteristics.


Designed by Matt Biolos

Lib Tech Leash Plug


  • Material: Carbon Fiber, Composite, Epoxy
  • Board Style: Groveler
  • Fin Box Layout: 5 Fin
  • Fin Compatibility: FCS II, Lib Tech FOC
  • Tail Style: Diamond
  • Bottom Shape: Double Concave
  • Rail Type: Moderate
  • Made in the USA: Yes
  • Warranty: 1 Year
Size 5'3" 5'5" 5'7" 5'9" 5'11" 6'1"
Width (in) 20.25 20.75 21.25 21.75 22.25 22.5
Thickness (in) 2.5 2.6 2.7 2.7 2.8 2.9
Volume (L) 30.5 33.5 37.5 39.5 43.5 45.5

Lib Tech Tri Large Fin Set

Lace up your board with a reliable, eco-friendly thruster setup that will work great in a variety of conditions with the Lib Tech Tri Large Fin Set.

Product Details


Upcycled ConstructionSince almost every surfboard in the world is basically an oval shape cut out of rectangular material, Lib Tech is saving the unused corners of their surfboards and making fins out of them.

Lightweight Hexzylon Fiberfoam Core

Reinforced Carbon Fiber Biaxial Base

Tensioned Carbon Fiber Torsion Rods


One Single Foil Trailer Fin4.70" H x 4.51" Base

Two Single Foil Lead Fins4.70" H x 4.51" Base


3 Fins


  • Material: Carbon Fiber, Fiberglass
  • Fin Category: Thruster (Tri)
  • Fin Box Compatibility: Lib Tech FOC II
  • Includes: 3 Fins
  • Rider Size: L (165+ lbs)
Size One Size
Rider Size L (165​+ lbs)
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