K&M 18851 Carrying Case for Spider

I have now worn out two of these bags, both of which were used with the same Spider Pro stand. I gig on average once a week and use the bag as intended solely for the Spider Pro. The bag design is good in principal but I would suggest the material used is not thick enough. My first bag, purchased in summer 2014, lasted a couple of years before there were large holes at the ends and it was no longer usable. The second, purchased in jan 2017, is less than a year old and has already developed a significant tear down the seam. The spider pro stand weighs over 11kg. It is self-evident that this bag is now not sufficiently strong enough to last more than a year. The quality needs to improve.