I've used it several times, but it's in beautiful condition with no noticeable damage. The electromagnetic wave shield is removable. Navy It significantly cuts down on electric field waves said to be emitted from computers, protecting the health of the operator. The shoulder straps are wide for comfortable work. Uses Kuraray's "Shine Up (R)"* with antibacterial and deodorizing effects. Reduces the smell of cigarettes even with fluorescent light! * Antibacterial and deodorizing effects continue even after repeated washing. ■ Size: Free ■ Fabric: Free size : High-performance electric field wave shielding material : 80% polyester, 20% nylon