toestraps

i have a 2 or 3 year old rs feva we have only had it since last easter and a couple of weekends ago we broke the starboard helm toestraps where they join to the crew toestraps. i got them stitched up with old bouncy aid and wipping twine then the other set broke in a similar place. does anyone have an idea what's causing this and what would you say the life expectancy of toestraps should be?

mike send them back to RS cos they shouldnt do that.  at aquasports our feva's are 2 years old and are used everyday and the toestraps still havent gone.   also the toestrapes on my 4tonner are like 6 year old and still havent gone even though my helm must be the most agressive hiker ever to set foot in a boat

i think they probably twisted themselves then tore. especialy the 1st 1 that went because i was climbing over onto the daggerboard and it went bang sploosh. the second one went when i was hiking out normally on a beat so i cant see how that would have twisted itself out. it went bang sploosh but this time i the boat sailed off for a while befor my crew realized that we'd slowed down because i was holding onto the mainsheet.