C4 MB001 Sideral 15 spearfishing fins

Built for elite freedivers and spearfishermen who demand the best, the C4 MB001 Sideral 15 carbon fins deliver explosive propulsion with minimal effort. The ultra-stiff, high-modulus carbon fiber blades transfer every ounce of energy directly into forward thrust — so you dive deeper, move faster, and surface with more in the tank.

• High-modulus carbon fiber blades for maximum power and efficiency
• Anatomical closed foot pocket for direct energy transfer and all-day comfort
• Parabolic blade geometry for smooth, fatigue-reducing kick cycles
• Lightweight construction reduces drag and improves agility at depth
• Designed for serious spearfishing and competitive freediving

When every metre counts, the Sideral 15 gives you the edge.