This M-15 was the standard issue gas mask for Israeli troops for years. Now you can add one to your military collection. Originally a very popular design and known for fitting all types of face shapes and sizes. Also large lenses for a wide field of view. Specially formulated rubber mask Fully adjustable for a snug, comfortable fit Impact resistant cylindrical plastic lenses NATO approved standard 40mm threaded filter canister housing Compatible with military canteen threads Includes (1) NATO-standard filter One size fits most Collectible only, not for safety usePlease note: May or may not include drinking system