The JS Thruster Fin is built with the updated new Epoxy Carbon Foam core technology. The template features a wider base that provides incredible amounts of instant acceleration, grip, and projection down the line. The constant flex and fast response of the Epoxy-Carbon maintain release out of the lip and through turns. One of the lightest fins you will find.
Availability: 10 In Stock and ready for delivery


  • Futures Compatible
  • Highly refined epoxy construction for added durability, increased speed and performance

Epoxy fins vs polyester fins:

  • Epoxy fins are more reactive, meaning a faster response time
  • Epoxy has a load of approx. 1800/2000lb x square inch vs 500/600lb x square inch of the poly resin
  • At high speed the epoxy fin is more reactive because it's able to handle the extra load. When the fin flexes it comes back faster, giving you a stronger spring back
  • More durable after extensive use poly fins become softer and lose their flexibility properties, while epoxy has a much longer life


Small (<70Kg / <155 Lbs)
Depth: 109.13mm / 4.24"
Base: 112mm / 4.43"
Area: 9100mm / 14"
Weight: 190g

Medium (65Kg - 80Kg / 145 - 175 Lbs)
Depth: 116mm / 4.5"
Base: 120mm / 4.74"
Area: 10950mm / 17"
Weight: 195g

Large (75Kg+ / 165Lbs+)
Depth: 119.mm / 4.6"
Base: 122mm / 4.83"
Area: 11000mm / 17"
Weight: 200g

UK Delivery for this product =
£3.95 for Royal Mail 48hr service.
£6.49 for Express Courier.

Generally all goods ordered before 1pm are sent out on the same day (Mon-Fri).

We offer a fast and efficient worldwide delivery service.

For International deliveries, the shipping will be calculated at checkout, together with any duties and tax. This ensures you have no unexpected charges when receiving your goods.. We guarantee you will have nothing extra to pay.

Check here for our full delivery information

Not happy with your product?

No problem at all!

You can return the product up to 30 days after purchase for a no quibble replacement or refund.
Simply fill out the returns form enclosed with your package and send back to us.
info@downthelinesurf.co.uk or ring one of the team on (01736) 757025

Please find our full Returns & Refund Policy here, and our Shipping Policy here. Customer Services can be contacted here.

If you have any questions about the JS x MFC Thruster Fin Set, submit the product question form below and we'll get back to you as soon as possible. Or give us a call on (01736) 757025.