The Adenna DarkLight nitrile powder-free gloves are resistant to punctures and chemicals. The exam-grade gloves have an average 9-mil finger thickness and are one of the thickest black nitrile gloves available, according to the company. Tthe DarkLight gloves are ideal for technicians who are looking for added protection against paint, paint thinners and light chemicals. The formulation makes these gloves softer and stretch farther to fit comfortably on the hands with a textured surface for excellent grip.