The SENTRY NODS Night Vision Cover is designed to protect that high value equipment whether you're training or on the mission. The night vision covers are made of 3mm neoprene that easily slips on and stays put until you're ready to use your night vision optics.Features Protects your high dollar NODs from dirt, dings and scratchesNeoprene repels moisture and keeps your glass from moldingEasily slips on and stays put until you need to remove it