How many swim fin replacement straps should the RS keep with their personal equipment?

The correct quantity of swim fin replacement straps recommended for a rescue swimmer to keep with their personal equipment is one. This practice is grounded in the principle of carrying essential gear that is both manageable and practical. Having a single replacement strap allows for quick fixes in the event of a malfunction or wear, ensuring safety and functionality during missions without overloading the swimmer with excess equipment.

Storing only one replacement strap not only saves space but also prevents unnecessary bulk that could hinder agility in the water. It provides a balance between being prepared for minor equipment failures while keeping the swimmer's load optimized. This approach aligns with the focus on efficiency and readiness that is critical in rescue operations.