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Review Summary
High modulus technopolymer
30 degree
Full Foot
45/46 Blue: 887728167464 | 39/40 Blue: 887728167433 | 36/38 Blue: 887728167426 | 47/48 Blue: 887728167471 | 43/44 Blue: 887728167457 | 45/46 Black: 887728167525 | 39/40 Black: 887728167495 | 43/44 Black: 887728167518 | 36/38 Black: 887728167488 | 47/48 Black: 887728167532 | 41/42 Blue: 887728167440 | 41/42 Black: 887728167501
Seac M-30 Freediving Fins Size Chart
| EU | 36/38 | 39/40 | 41/42 | 43/44 | 45/46 | 47/48 |
|---|---|---|---|---|---|---|
| UK | 3.5-5 | 5.5-6.5 | 7-8 | 8.5-9.5 | 10-11 | 12-13 |
| US | 4.5-5.5 | 6.5-7 | 8-8.5 | 9.5-10 | 10-11 | 12.5-13.5 |
| Weight (lbs) | 2.09 | 2.13 | 2.14 | 2.19 | 2.35 | 2.51 |
| Fin Length (in) | 33.07 | 33.85 | 34.25 | 34.64 | 35.43 | 35.82 |
High Performance Blade with Responsive Energy Return
Designed for efficiency and control, these freediving fins feature a high modulus technopolymer blade that combines reduced weight with increased elastic response. This construction allows smooth and powerful kicks, improving propulsion during freediving and spearfishing sessions. The long blade design enhances underwater efficiency, making these long blade fins suitable for extended dives while maintaining a natural kicking motion.
Interchangeable System for Progressive Performance
The interchangeable blade system offers versatility and long term adaptability. Compatible with more structured blade options such as BM-30, this setup allows progression as diving technique evolves. Built to balance flexibility and durability, these spearfishing fins provide reliable performance across different diving styles, from beginners to experienced users seeking improved responsiveness.
Ergonomic Foot Pocket with Optimized Power Transfer
The M-30 liner features a dual material construction with short side members that enhance blade reactivity and improve energy transmission. This design ensures comfort whether worn barefoot or with thin socks, supporting extended underwater sessions. A 30 degree inclined angle optimizes thrust while reducing muscle fatigue, making these freedive fins effective for deep diving and long duration use.
Versatile Design with Proven Diving Quality
Lightweight and flexible construction supports consistent performance across freediving, spearfishing, and recreational diving. Designed to deliver comfort, responsiveness, and durability, these fins maintain reliability over prolonged use. Manufactured in Italy, these diving fins deliver a dependable balance of performance and comfort for a wide range of underwater activities.
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