Hmmm...overloading may have been a factor although, in my opinion, they weren't severely overloaded...just filled completely. I did encounter rain several times during the 3 weeks but, I wouldn't think that would be a factor in the ripping seams.
They are easily repaired since, it's just a matter of sewing the seams back but, I was hoping to see if Tekno had some kind of warranty.
Orson