Gamekeeper Dirt Shirt Short Sleeve Size_10.5 Wide 000+ hours of runtime MOTAC 000+ hours of runtime MOTAC (Motion Activated Illumination System) that powers up when it senses motion and powers down when it does not Aircraft grade CNC Aluminum housing ensures a lifetime of reliable service Dependable waterproof (IPX 7 rated for complete water immersion up to 1 meter) and fog proof performance Ruggedized protective steel shroud included for extreme durability Easy access battery compartment SIG SAUER® Electro Optics Infinite Guarantee and SIG SAUER Electronic Component Limited 5 Year Warranty works well under difficult conditions: rain