£25.00
Can be used as quad rears on a shortboard, or side bites on a longboard
Availability: Out of Stock – We understand the frustration when the product you're looking for is unavailable. At Down the Line Surf, we constantly update our inventory. New stock may be coming in soon. Give us a call on +44 (0)1736 757025 or submit your email below to be notified when new stock arrives. Thank you for choosing Down the Line Surf!

 Can be used as a quad rear, or longboard side fin. Can also be used as the two front fins on a thruster set for very small or light surfers

Optimum weight range: under 55kg

Glass Flex has been formulated to replicate the flex and memory properties of hand layed fibreglass. Its advantages over other composite fin materials include stiffness, a more positive flex pattern (nice tip flex, little base flex) and remarkable flex memory. The precision of the injection moulding process ensures the highest accuracy in geometry in each fin produced.

Base: 3.86" / 98mm
Depth: 3.93" / 100mm
Area: 11.07"² / 7140mm²
Sweep: 33.2°
Foil: FLAT

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 FCS G-X fins, 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.