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Black Friday Sale Announcement

info@surfindustries.com    855 474 6821   
  • SALE
  • PRODUCTS
    • Beginner Surfboards
      • Highline - ES
      • Highline - PU
      • Highline 2.0 - PU
      • Mid Tide - ES
      • Fun Guy - ES
    • Soft Surfboards
      • Highline - ES
      • Love Child - ES
      • Double Wide - ES
      • Mid Tide - ES
      • Fun Guy - ES
    • Fish Surfboards
      • Highline - PU
      • Highline 2.0 - PU
      • Superfish 4
      • Shorebird - PU
      • Angler - PU
    • Shortboards
      • Double Down - PU
      • Jetstream + - PU
      • Highline - PU
      • Highline 2.0 - PU
      • Falcon - PU
    • Twin Fin Surfboards
      • Shorebird - PU
      • Angler - PU
    • Mid Length Surfboards
      • Falcon - PU
      • Love Child - PU
      • Double Wide - SLX
      • Love Child - ES
      • Double Wide - ES
      • Mid Tide - PU
      • Mid Tide - ES
      • Hermit - PU
      • Huevo - PU
    • Longboards
      • Double Wide - SLX
      • The Golden Rule - PU
      • Retro - PU
      • Dusty - PU
      • Fun Guy - ES
      • Logger Head - PU
      • All Rounder - PU
      • Jumbo Jet - SLX
      • Five Sugars - PU
      • Cruz - PU
    • Stand Up Paddleboards
      • All Rounder - MX
      • Sixty/Forty - MX - two tone blue
      • Outer Reef - MX
      • Paradise Punch - MX
    • Leashes
      • Leashes
    • Board Bags
      • Surfboard Bag
      • Longboard Bag
      • All Rounder SUP Bag
    • Traction Pads
      • Traction Pad - black
      • Traction Pad - white
    • Fins
      • FCS2 Performer Med Fin Set
      • FCS2 Performer Quad Rears
      • Modern 6" Longboard Fin
      • Modern 7" Longboard Fin
      • Modern 8" Longboard Fin
      • Modern 9.5" Longboard Fin
      • CA 7" Smoky Grey Longboard Fin
      • CA 9" Smoky Grey Longboard Fin
      • AP 10" Molded SUP Fin
      • AP 8" Molded SUP Fin
      • Gnaraloo Schoolie Fin Set
      • Longboard Finger Screw & Plate
      • Longboard Hex Screw & Plate
      • Tom Carroll 9.5" SUP Fin
    • SUP Paddles
      • T6 Alloy Lever Lock
      • T6 Fiberglass Lever Lock
      • Pro Fiberglass Lever Lock
      • Elite Carbon Lever Lock
      • SUP Paddle Parts
    • Surfboard Storage
      • FCS Hang Up
      • FCS2 Hang Up
      • Futures Fins Hang Up
      • Longboard Hang Up
      • SUP Hang Up
    • Mobile Apps
      • Swellinfo Forecast App
  • BRANDS
    • MODERN SURFBOARDS
      • Highline - PU
      • Highline - ES
      • Highline 2.0 - PU
      • Falcon - PU
      • Love Child - PU
      • Love Child - ES
      • Double Wide - SLX
      • Double Wide - ES
      • The Golden Rule - PU
      • Retro - PU
    • 7S SURFBOARDS
      • Double Down PU
      • Jetstream + - PU
      • Superfish 4 - PU
    • SALT GYPSY SURFBOARDS
      • Mid Tide - PU
      • Mid Tide - ES
      • Dusty - PU
      • Shorebird - PU
      • Paradise Punch - MX
    • THE CRITICAL SLIDE SOCIETY SURFBOARDS
      • The Hermit - PU
      • Fun Guy - ES
      • The Angler - PU
      • Logger Head - PU
      • All Rounder - PU
    • CREATIVE ARMY SURFBOARDS
      • Huevo - PU
      • Huevo - SLX
      • Jumbo Jet - SLX
      • Five Sugars - PU
      • Cruz - PU
    • TOM CARROLL PADDLE SURF
      • Outer Reef - MX
    • ADVENTURE PADDLEBOARDING
      • All Rounder - MX - light blue
      • Sixty Forty - MX - two tone blue
    • SURFICA ACCESSORIES
      • Surfboard Bags
      • Longboard Bags
      • All Rounder SUP Bags
      • Leashes
      • Traction Pad - black
      • Traction Pad - white
    • TRIDENT SUP PADDLES
      • T6 Alloy Lever lock
      • T6 FG Lever Lock
      • Pro FG Lever Lock
      • Elite Carbon Lever Lock
    • HANG UP SYSTEMS
      • FCS Hang Up
      • FCSII Hang Up
      • Futures Hang Up
      • Longboard Hang Up
      • SUP Hang Up
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Global Surf Industries - USA
  • SALE
  • PRODUCTS
    • Beginner Surfboards
      • Highline - ES
      • Highline - PU
      • Highline 2.0 - PU
      • Mid Tide - ES
      • Fun Guy - ES
    • Soft Surfboards
      • Highline - ES
      • Love Child - ES
      • Double Wide - ES
      • Mid Tide - ES
      • Fun Guy - ES
    • Fish Surfboards
      • Highline - PU
      • Highline 2.0 - PU
      • Superfish 4
      • Shorebird - PU
      • Angler - PU
    • Shortboards
      • Double Down - PU
      • Jetstream + - PU
      • Highline - PU
      • Highline 2.0 - PU
      • Falcon - PU
    • Twin Fin Surfboards
      • Shorebird - PU
      • Angler - PU
    • Mid Length Surfboards
      • Falcon - PU
      • Love Child - PU
      • Double Wide - SLX
      • Love Child - ES
      • Double Wide - ES
      • Mid Tide - PU
      • Mid Tide - ES
      • Hermit - PU
      • Huevo - PU
    • Longboards
      • Double Wide - SLX
      • The Golden Rule - PU
      • Retro - PU
      • Dusty - PU
      • Fun Guy - ES
      • Logger Head - PU
      • All Rounder - PU
      • Jumbo Jet - SLX
      • Five Sugars - PU
      • Cruz - PU
    • Stand Up Paddleboards
      • All Rounder - MX
      • Sixty/Forty - MX - two tone blue
      • Outer Reef - MX
      • Paradise Punch - MX
    • Leashes
      • Leashes
    • Board Bags
      • Surfboard Bag
      • Longboard Bag
      • All Rounder SUP Bag
    • Traction Pads
      • Traction Pad - black
      • Traction Pad - white
    • Fins
      • FCS2 Performer Med Fin Set
      • FCS2 Performer Quad Rears
      • Modern 6" Longboard Fin
      • Modern 7" Longboard Fin
      • Modern 8" Longboard Fin
      • Modern 9.5" Longboard Fin
      • CA 7" Smoky Grey Longboard Fin
      • CA 9" Smoky Grey Longboard Fin
      • AP 10" Molded SUP Fin
      • AP 8" Molded SUP Fin
      • Gnaraloo Schoolie Fin Set
      • Longboard Finger Screw & Plate
      • Longboard Hex Screw & Plate
      • Tom Carroll 9.5" SUP Fin
    • SUP Paddles
      • T6 Alloy Lever Lock
      • T6 Fiberglass Lever Lock
      • Pro Fiberglass Lever Lock
      • Elite Carbon Lever Lock
      • SUP Paddle Parts
    • Surfboard Storage
      • FCS Hang Up
      • FCS2 Hang Up
      • Futures Fins Hang Up
      • Longboard Hang Up
      • SUP Hang Up
    • Mobile Apps
      • Swellinfo Forecast App
  • BRANDS
    • MODERN SURFBOARDS
      • Highline - PU
      • Highline - ES
      • Highline 2.0 - PU
      • Falcon - PU
      • Love Child - PU
      • Love Child - ES
      • Double Wide - SLX
      • Double Wide - ES
      • The Golden Rule - PU
      • Retro - PU
    • 7S SURFBOARDS
      • Double Down PU
      • Jetstream + - PU
      • Superfish 4 - PU
    • SALT GYPSY SURFBOARDS
      • Mid Tide - PU
      • Mid Tide - ES
      • Dusty - PU
      • Shorebird - PU
      • Paradise Punch - MX
    • THE CRITICAL SLIDE SOCIETY SURFBOARDS
      • The Hermit - PU
      • Fun Guy - ES
      • The Angler - PU
      • Logger Head - PU
      • All Rounder - PU
    • CREATIVE ARMY SURFBOARDS
      • Huevo - PU
      • Huevo - SLX
      • Jumbo Jet - SLX
      • Five Sugars - PU
      • Cruz - PU
    • TOM CARROLL PADDLE SURF
      • Outer Reef - MX
    • ADVENTURE PADDLEBOARDING
      • All Rounder - MX - light blue
      • Sixty Forty - MX - two tone blue
    • SURFICA ACCESSORIES
      • Surfboard Bags
      • Longboard Bags
      • All Rounder SUP Bags
      • Leashes
      • Traction Pad - black
      • Traction Pad - white
    • TRIDENT SUP PADDLES
      • T6 Alloy Lever lock
      • T6 FG Lever Lock
      • Pro FG Lever Lock
      • Elite Carbon Lever Lock
    • HANG UP SYSTEMS
      • FCS Hang Up
      • FCSII Hang Up
      • Futures Hang Up
      • Longboard Hang Up
      • SUP Hang Up
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SALE      PRODUCTS      BRANDS

  • FCS II Modern Keel Twin Fins

    FCS II Modern Keel Twin Fins

    FCS II Modern Keel Twin Fins

    Regular price $110.00 USD
    Regular price Sale price $110.00 USD
    Unit price /  per 

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BRANDS

  • 7S
  • ADVENTURE PADDLEBOARDING
  • CREATIVE ARMY
  • MODERN SURFBOARDS
  • SALT GYPSY SURFBOARDS
  • SURFICA ACCESSORIES
  • THE CRITICAL SLIDE SOCIETY
  • TOM CARROLL PADDLE SURF
  • TRIDENT SUP PADDLES

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HOW TO VIDEOS

  • HOW TO APPLY A TAIL PAD
  • HOW TO ATTACH A LEG ROPE
  • HOW TO ATTACH TRADITIONAL LEASH STRING
  • HOW TO CHOOSE A SURFBOARD
  • HOW TO INFLATE AN INFLATABLE SUP
  • HOW TO INSERT ORIGINAL FCS FINS
  • HOW TO INSERT ORIGINAL FCS HANG UP
  • HOW TO INSERT ORIGINAL FCS HANG UP
  • HOW TO INSERT FCSII FINS
  • HOW TO INSERT FCSII HANG UP
  • HOW TO INSERT FUTURES FINS HANG UP
  • HOW TO INSERT A LONGBOARD / SUP FINS
  • HOW TO INSERT A LONGBOARD HANG UP
  • HOW TO INSERT A SUP HANG UP
  • HOW TO UNPACK YOUR GSI BOARD
  • HOW TO USE THE LEVERLOCK® SYSTEM
  • HOW TO WAX A SURFBOARD
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