The Sentry system is a short multipurpose glove similar to the Operator, but instead of Nomex it is produced from ribbed nylon and premium cowhide leather and digital goatskin leather, The Sentry is breathable and form fitting. The Velcro wrist strap ensures a secure, comfortable fit.åÊ Line of Fire SENSA-TOUCHå¨ gloves work seamlessly with iPhones, iPads, aircraft and vehicle touch screen monitors, and medical equipment. Unlike other manufacturers who press strands of metal into glove material for capacitance recognition, Line of FireåÕs suppliers employ a unique patent-pending nanotechnology during the processing of the specialized leathers used in glove construction. This means no discomfort or tactile distortion from plastic dots added to the tips of gloves or reflective silver material sewn into fingertips. You donåÕt even know itåÕs there.