The shirt looks so cool, but are in the sleeves, hem in, the plackets, so I suppose anywhere sewn metal filaments for maintenance stabilization. If it's new, it wears well though relatively "stiff", one must not, however, wash several times or not at hurling. Because at some point break the metal threads and pass through the fabric and stitches. Not only sting, they can also hurt, bleeding puncture wounds on the hand or in Kragenbreich. I started, pull out the metal filaments as they emerge with the pliers. I'm sorry, but I can not give buy rating.