The M17A2 is the standard-A field mask. It is a modification of the M17A1 mask and has no resuscitation tube. -A voicemitter to facilitate communication. -A tube for drinking water from the canteen while masked. -Two outserts to protect the eye lenses and to prevent fogging in low temperatures. -A carrier for storing and carrying the mask and additional authorized items. *Internal filters not included* Mask includes carrier bag * All Mask are Marked US M (medium) *The photos are representative of the item(s) you will receive, but are not the actual item(s). The item(s) you receive may differ slightly in condition or appearance from the representative photos, but will be substantially the same in terms of their condition, appearance and functionality. Please Note, This item does not ship internationally. Any orders that require shipment outside of the United States will be canceled and refunded.