I ain,t no expert ,,, but i reakon leashes should be graded by braking strain like fishing line,,,If i went out in 10 ft surf and got caught out but new in the back of me mind the leash would snap under a certain amount of tow,then alls well ,,right,,,and as well there being a safe channel to swim home

Fkn leash suppliers,,get your grading right IE 3 to 10 foot!!!!!