This is the 2nd one I have bought. The first went through more than a year of pack-hauling, 15-20 kilos.
Fabric at the shoulder strap has just started to fray a little, but under that load, being swung around, not washed often (read sweat eating into the fabric), what do you expect?
Am downgrading that pack to a civilian life-style EDC, given its injury. Expect it will serve me well in that capacity for years to come.