3.7" Classic Side Fins – Solid Black Pro Glass | Futures Compatible (Set of Two)

Futures compatible. Depth 3.7 inches Base 3.5 inches Foil: flat inside face Tab 3/4”

The 3.7" Classic Side Fins are constructed from solid black Pro Glass for predictable flex, durability, and consistent performance. Designed as side fins, this size provides a balanced blend of drive and hold without overpowering the tail, making them suitable for a wide range of board designs and fin setups.

The classic template delivers smooth rail-to-rail transitions and controlled release, particularly in clean to mixed conditions. Pro Glass construction ensures reliable response under load, maintaining its flex pattern over time. These fins are supplied as a matched pair and are compatible with Futures fin systems.

Key features

• 3.7" side fin height for balanced performance

• Classic side fin template

• Solid black Pro Glass construction

• Consistent flex and durability

• Supplied as a set of two fins

• Futures compatible base

Ideal for

• Thruster and quad fin configurations requiring side fins

• Shortboards, hybrids, and performance mid-lengths

• Surfers seeking controlled drive and predictable response

• Small to medium surf conditions

Why choose this product

• Proven classic side fin template

• Durable Pro Glass construction with stable flex

• Neutral size suitable for a wide range of boards

• Compatible with Futures fin systems

Compatibility

• Futures fin boxes

• Designed for side fin positions

• Not compatible with FCS or FCS II systems

Frequently Asked Questions

Are these fins sold as a pair or individually?
These fins are supplied as a matched set of two side fins.

Can these be used as rear quad fins?
They may be used as rear quad fins on some setups, depending on board design and rider preference, but they are primarily designed as side fins.

Will these fit FCS or FCS II fin boxes?
No. These fins are Futures compatible only and will not fit FCS or FCS II fin boxes.

3.7-inch classic side fins made from solid black Pro Glass, supplied as a Futures compatible set of two. Designed to deliver balanced drive, hold, and predictable flex for thruster and quad surfboard setups. Suitable for shortboards, hybrids, and mid-length boards in small to medium conditions.

We include

Free Delivery: of all fins and accessories everywhere in Australia.

Tracking: Quick & easy online tracking on all fins. 

Peace of Mind: All our fins are insured against loss in transit.

Prompt Australian Dispatch: All items are sent from stock held in Sydney on the same or next business day.

Returns: 30-day, no questions asked returns, for unused full price items.

No More to Pay: No surcharges added at the checkout.

Express Shipping just $10 per order