null Skip to main content
The best place to fuel your stoke!
Toggle menu
USEDSURF

949.310.6602

  • Account
  • Cart
    ×
    • Board Search Program
    • Surfboards
      • USEDSURF MERCH

        USEDSURF MERCH

        SUNGLASS SALE

        SUNGLASS SALE

        USEDSURF INSTAGRAM

        USEDSURF INSTAGRAM

      • All Surfboards
      • SEARCH BY VOLUME
      • Used Surfboards
      • New Surfboards
    • Accessories
      • USEDSURF YouTube

        USEDSURF YouTube

        SUNGLASS SALE

        SUNGLASS SALE

        USEDSURF MERCH

        USEDSURF MERCH

      • All Accessories
      • New Fins
      • Reusable Water Bottles
      • Sunglasses
      • Used Fins
      • Usedsurf Merch
      • Leashes
      • Traction Pads
      • Helmets
      • Wax /Wax Removal
      • Repair
      • Sunscreen
      • Board Bags
      • SURFBOARD RACKS AND STRAPS
      • Bags & Backpacks
      • T-Shirts/Hats
      • Miscellaneous
      • Wetsuits
    • ON SALE!
      • How To Tie Your Leash String

        How To Tie Your Leash String

        USEDSURF's OFF THE RACK SERIES

        USEDSURF's OFF THE RACK SERIES

        USEDSURF MERCH

        USEDSURF MERCH

      • All ON SALE!
      • Dakine Discontinued Closeout
      • FCS and Gorilla Overstock Sale
      • Sunglass Sale
      • Fins on Sale
      • Surfboard Sale
      • Traction Sale
    • Services
      • ALL SERVICES
      • Board Search Program
      • Ding Repair
      • ASK THE FIN GURU
      • Buy Try Decide
      • Buy Back Program
      • Fin Spex Futures
      • FIN DEMO PROGRAM
      • FinTalk
      • SELL YOUR SURFBOARD
      • Surfboard Rentals San Clemente
      • Surf101
      • We Buy FIns
    • USEDSURF TV
    • BLOG
    • About Us
    • San Clemente Pier
    • GIFT CERTIFICATES
    • Login or Register
    • 949.310.6602


    1. Home
    2. Accessories
    3. New Fins
    4. FCS II
    5. Tri Fins
    6. Medium (145-175)

    Shop By Price

    • Price range: $0.00 - $77.00 The filter has been applied
    • Price range: $77.00 - $100.00 The filter has been applied
    • Price range: $100.00 - $124.00 The filter has been applied
    • Price range: $124.00 - $147.00 The filter has been applied
    • Price range: $147.00 - $170.00 The filter has been applied

    Medium (145-175)

    Compare
    • 1 Column
    • 2 Column
    • 1
    • 2
    • 3
    • 4
    • FCS II CI Upright PC Tri Set 2025 New Color

      FCS II CI Upright PC Tri Set 2025 New Color

      Was:
      $119.99
      Choose Options
    • FCS II Mason Ho PC Aircore Tri

      FCS II Mason Ho PC Aircore Tri

      Was:
      $139.99
      Choose Options
    • FCS II Sharpeye PC Carbon Tri Black/White

      FCS II Sharpeye PC Carbon Tri Black/White

      Was:
      $139.99
      Choose Options
    • FCS II Matt Biolis MB 2025 Tri Fins

      FCS II Matt Biolis MB 2025 Tri Fins

      Was:
      $139.99
      Choose Options
    • FCSII CI x Dane Reynolds DD2 PG Tri Set

      FCSII CI x Dane Reynolds DD2 PG Tri Set

      Was:
      $119.99
      Choose Options
    • FCS II Carissa Moore Signature Tri Fin - Black

      FCS II Carissa Moore Signature Tri Fin - Black

      Was:
      $140.00
      Choose Options
    • FCS II Carissa  Moore Signature Tri Fin - Blue

      FCS II Carissa Moore Signature Tri Fin - Blue

      Was:
      $140.00
      Choose Options
    • FCS II Gabriel Medina GM PC Aircore Tri Fins - Fireball

      FCS II Gabriel Medina GM PC Aircore Tri Fins - Fireball

      Was:
      $140.00
      Choose Options
    • FCS II Gabriel Medina GM PC Aircore Tri Fins - Blue

      FCS II Gabriel Medina GM PC Aircore Tri Fins - Blue

      Was:
      $140.00
      Choose Options
    • FCS II Mick Fanning MF Tri  - Black/White

      FCS II Mick Fanning MF Tri - Black/White

      MSRP: $140.00
      Was:
      Now: $130.00 - $169.99
      Choose Options
    • FCS II Filipe Toledo (FT) PG Pro Tri Fin

      FCS II Filipe Toledo (FT) PG Pro Tri Fin

      Was:
      $120.00
      Choose Options
    • FCS II Mick Fanning (MF) PG Pro Tri Fin

      FCS II Mick Fanning (MF) PG Pro Tri Fin

      Was:
      $120.00
      Choose Options
    • FCS II Al Merrick (AM) PG Pro Tri Fin

      FCS II Al Merrick (AM) PG Pro Tri Fin

      MSRP:
      Was:
      Now: $120.00 - $145.99
      Choose Options
    • FCS II Performer GF Tri

      FCS II Performer GF Tri

      Was:
      $53.99
      Choose Options
    • FCS II HS PC Aircore Tri White

      FCS II HS PC Aircore Tri White

      Was:
      $140.00
      Choose Options
    • 1
    • 2
    • 3
    • 4

    Login

    ×

    Oops, something went wrong. Please try again.

    You are now logged in!

    Register Forgot your password?

    Footer Start

    Info

    • 216 Calle de Los Molinos
      San Clemente, CA 92672
    • Store Hours:
      M-F 10AM-6PM
      Sat-Sun 10AM-4PM
    • Call us at (949) 310-6602
    • Email: info@usedsurf.com

    Programs & Rentals

    • SHIFT
    • Cherry Bomb
    • We Buy Fins
    • Board Search Program
    • Fin Demo Program
    • Buy Back Program
    • Surfboard Rentals

    Resources

    • Shipping & Returns
    • Privacy Policy
    • Sitemap
    • Sell Your Surfboard
    • Newsletter
    • Ask the Fin Guru
    • Get to Know Our Staff
    • UsedSurf TV
    • About Us

    Follow Us

    USEDSURF
    • © 2025 USEDSURF

    • BigCommerce Design & Development by IntuitSolutions

    • SitemapPrivacy Policy

    • Sitemap

    • Privacy Policy