Help ! Nike Tn big 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 : https://scontent-mrs1-1.xx.fbcdn.ne...=7d52671491fe545856a3c5c8291fe465&oe=5650B54B 
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