Third pair of Hi-Tec Quadra I've had... first pair the glue bonding the soles to the shoes failed. Second pair after about six months the insides of the soles just fell apart, it was like walking on a bare foot shoe with random rubble in. Third pair it looks like one of the side panel stiffeners has either broken or was mis-cut and the leather has worn a hole. Maybe I am a sucker for buying two more after the soles fell off, trouble is when they are new they are so so comfortable. But they don't last, from three different failure modes, so it's not something I do to them, it's inconsistent bad build quality.