This is a Night Vision icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,500 icons, all in the same style and quality.
We've received the idea on August 21, 2012 and created the icons on September 04, 2012
Military Equipment - (Army) Boots, Rucksack, Webbing (Assault Rig), Helmet (If you can the British Kevlar type too. Part of the facial icon or not), Nightvision, Camo cream/paint, Ration Pack, medal, Tent or makeshift shelter, rifle, grenade