Nike Tuned 1 problem ? !!!

Hi everyone ! Well I Just want to know why always the Nike Tn Get always split and torn in the area where the bleu circle is in the picture : on the side
I bought about 7-8 Tns In the past 2 years and every single of them got torn in that area on the side Oo ! can anyone please tell me why the reason And how to prevent that ???? thanks 

because no one has answered me and infact It's none of your business @gravedig king