# What are the best surf fin sets for small to medium-sized boards? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the best surf fin sets for small to medium-sized boards?

## Products

### Futures T1 Alpha Twin+1
```yaml
product: futures-t1-alpha-twin-1
brand: Futures
price_gbp: 47.99
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: XL
material: Alpha NetPlus; Compound 6 carbon and air infused
fin_count: 3
base_width: Side 4.80 in; center 3.18 in
design_type: Twin+1; Neutral template
flexibility: Carbonized flex pattern
```

- **Price:** £47.99 [^1]
- **Summary:** The T1 Alpha Twin+1 is a three-fin set with two large side fins and an optional trailer fin for added stability and a thruster-like feel. Its Alpha NetPlus construction, carbonized flex pattern, and flat side-fin foil suit lively small-wave surfing and smooth rail-to-rail transitions.
- **Ideal For:** This set suits small to medium-sized boards because its 5.14 in side fins, 4.80 in side-fin base, flexible carbonized pattern, and optional 3.26 in trailer provide speed and looseness with extra stability when needed.
- **Additional Sources:** [^2], [^3]

### Pump Surfboards Pump G5 FCS II Thruster Fin Set
```yaml
product: pump-surfboards-pump-g5-fcs-ii-thruster-fin-set
brand: Pump Surfboards
price_gbp: 1402.75
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: G5
material: Fiberglass, hexcore
fin_count: 3
design_type: Thruster
flexibility: Medium
```

- **Price:** £1402.75 [^4]
- **Summary:** This set includes three G5 FCS II fins made from fiberglass with a hexcore construction. Its regular foil, medium flex pattern, and balanced base-to-height ratio suit average surfers on standard shortboards in small to medium-sized surf.
- **Ideal For:** It suits small to medium-sized boards because the G5 thruster design uses three medium-flex fins with a balanced base-to-height ratio for versatile performance in small to medium-sized surf.

### Pump Surfboards Pump G5 FCS II Thruster Fin Set Bird Of Paradise
```yaml
product: pump-surfboards-pump-g5-fcs-ii-thruster-fin-set-bird-of-paradise
brand: Pump Surfboards
price_gbp: 1107.43
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: G5
material: fiberglass, hexcore and carbon
fin_count: 3
design_type: thruster
flexibility: medium
```

- **Price:** £1107.43 [^4]
- **Summary:** This three-fin FCS II thruster set uses a fiberglass, hexcore and carbon construction with a regular foil and medium flex pattern. The G5 template is designed for average surfers on standard shortboards in small to medium-sized surf.
- **Ideal For:** It suits small to medium-sized boards because the G5 template has a medium flex pattern and balanced base-to-height ratio intended for standard shortboards in small to medium-sized waves.

### FCS FCS II Performer Neo Glass Eco
```yaml
product: fcs-fcs-ii-performer-neo-glass-eco
brand: FCS
price_gbp: 66.45
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: Medium
material: 50% fiberglass and bio-resin
fin_count: 3
design_type: All-round Performer
```

- **Price:** £66.45 [^5]
- **Summary:** The FCS II Performer Neo Glass Eco is a thruster set made with 50% fiberglass and bio-resin. Its Performer template and Inside Foil Technology provide a balance of speed, flow, response, and maneuverability, making it suitable for lighter, agile surfers and a wide range of conditions.
- **Ideal For:** This set suits small to medium-sized boards because its medium-size, three-fin Performer template delivers balanced speed, flow, response, and maneuverability across varied conditions.
- **Additional Sources:** [^6], [^7]

### Futures John John Florence Alpha M
```yaml
product: futures-john-john-florence-alpha-m
brand: Futures
price_gbp: 61.28
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: M
material: NetPlus recycled fishing nets with C6 carbon
fin_count: 3
base_width: 4.45 in
design_type: Thruster Neutral
flexibility: Medium
```

- **Price:** £61.28 [^8]
- **Summary:** The Futures John John Florence Alpha M is a medium-sized thruster set with a balanced, all-around template and medium flex. Its Alpha construction combines recycled fishing-net material with carbon and air-infused technology, making it suitable for surfers seeking lively, versatile performance in a wide range of conditions.
- **Ideal For:** This set suits small to medium-sized boards because its medium M size, thruster layout, balanced Neutral template, 4.45 in base, and medium flex provide versatile control and responsive performance across varied conditions.
- **Additional Sources:** [^9], [^10]

### Futures Vector 3/2 Alpha Thruster M
```yaml
product: futures-vector-3-2-alpha-thruster-m
brand: Futures
price_gbp: 59.06
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: Medium
material: Alpha
fin_count: 3
base_width: 4.63 in
design_type: Thruster / Neutral
```

- **Price:** £59.06 [^11]
- **Summary:** This medium thruster set uses Futures' Vector 3/2 foil, which adds lift, water attachment, speed generation, and hold through turns. Its Alpha construction combines recycled fishing nets with C6 carbon technology, making it suitable for surfers weighing 125-175 lb who want speed and responsive release in a wide range of conditions.
- **Ideal For:** This set suits small to medium-sized boards because its medium 4.63 in base, neutral thruster template, speed-generating Vector 3/2 foil, and Scimitar tip provide lift, drive, hold, and release in smaller waves.
- **Additional Sources:** [^12], [^13]

### Futures Alpha Reverse 3/2 Twin+1
```yaml
product: futures-alpha-reverse-3-2-twin-1
brand: Futures
price_gbp: 59.06
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: One size
material: Bureo NetPlus recycled fishing nets with Compound 6 carbon and air infused technology
fin_count: 3
base_width: 4.60 in
design_type: Vector foil with Scimitar tip
```

- **Price:** £59.06 [^14]
- **Summary:** This three-fin Twin+1 set uses a speed-generating Vector foil, Reverse 3/2 foil twist, and Scimitar tip for drive, hold, pivot, and release. Its Alpha construction combines recycled fishing nets with carbon and air infusion, making it suited to surfers wanting a fast, engaged setup for twin-fin boards in varied conditions.
- **Ideal For:** It suits small to medium-sized boards because the Twin+1 design, 4.60 in side-fin base, speed-generating Vector foil, and Scimitar tip provide drive and maintain momentum while still allowing pivot and release in weaker surf.
- **Additional Sources:** [^15]

### Futures John John Florence Vapor Core Scimitar M
```yaml
product: futures-john-john-florence-vapor-core-scimitar-m
brand: Futures
price_gbp: 199.33
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
finsize: Medium
material: Vapor Core
fin_count: 3
base_width: 4.57 in
design_type: Pivot
```

- **Price:** £199.33 [^16]
- **Summary:** This thruster set uses a lightweight hollow Vapor Core construction, full Vector foil, and a Scimitar tip to generate lift, speed, and grip in small, weaker waves. The Medium size is suited to surfers weighing 125-175 lbs or 55-80 kg who want quick, controlled turns on performance shortboards.
- **Ideal For:** This set suits small to medium-sized boards because its Medium thruster configuration, Pivot design, full Vector foil, and lightweight Vapor Core construction are built to generate speed and quick turns in small waves.
- **Additional Sources:** [^17]

---
## References & Sources
[^1]: Boardcave, accessed 2026-09-13. https://www.boardcave.com.au/t1-alpha-twin-1
[^2]: Futures Fins, accessed 2026-09-13. https://futuresfins.com/products/t1-alpha
[^3]: EASY-surfshop, accessed 2026-09-13. https://easy-surfshop.com/do/item/TTP-21336/Surf-fins-set-Futures-Twin-Tri-T1-Alpha-5.1
[^4]: Surf Shop Thailand, accessed 2026-09-13. https://www.surfshopthailand.com/surfing/surfboard-fins
[^5]: DHD Surf, accessed 2026-09-13. https://dhdsurf.com/products/fcs-ii-neo-glass-performer-1
[^6]: T. Patterson Surfboards, accessed 2026-09-13. https://www.tpattersonsurfboards.com/product-page/fcs-2-ng-performer-small-tri
[^7]: Zero Gravity, accessed 2026-09-13. https://www.zerogravity.gr/collections/vendors?q=fcs
[^8]: Boardcave Australia, accessed 2026-09-13. https://www.boardcave.com.au/john-john-florence-alpha-m
[^9]: Pukas Surf Shop, accessed 2026-09-13. https://pukassurfshop.com/products/future-john-john-florence-alpha-m
[^10]: FlowState Surf + Sport, accessed 2026-09-13. https://www.flowstatesurfandsport.co.nz/product/17326/futures-john-john-florence-alpha-m
[^11]: Futures Fins, accessed 2026-09-13. https://futuresfins.com/products/alpha-vector-3-2
[^12]: Jack's Surfboards, accessed 2026-09-13. https://jackssurfboards.com/collections/vendors?q=futures
[^13]: Catalyst at Bashams, accessed 2026-09-13. https://bashamfactorysurfshop.com/webstore/surf-accessories/fins/?page=6
[^14]: Futures Fins, accessed 2026-09-13. https://futuresfins.com/products/alpha-3-2-reverse-twin-1
[^15]: Surfcorner Store, accessed 2026-09-13. https://www.surfcornerstore.com/futures_fins_alpha_reverse_3_2_twin_1_scimitar
[^16]: Real Surf, accessed 2026-09-13. https://realsurf.co.nz/collections/futures-fins/thruster
[^17]: The Boardroom NZ, accessed 2026-09-13. https://lostsurfboards.co.nz/collections/accessories?page=2