amazon dot com /Thai-Deodorant-Stone-Crystal-Fluid/dp/B000B969B4 This is what I have resorted to using on husbands kevlar vest. That thing was disgusting, under his dark blue clothes, in the heat of the summer... Actually it was a smelly mess any time of the year. He would set it on the porch... which works if there is sunlight. But due to his shift work, sometimes there is no opportunity for it to sit in the sun all day. So I started using my thai spray on it. Every time he takes it off he gives it a light spritz and there has not been an odor since.