Genuine British military surplus gas mask bag with strap, in DPM Camo. Features a button snap closure main pocket with side pocket. 100% Polyamide, Polyurethane coated. Dimensions: 10 x 9 x 5 in.
Brits call it 'respirator', I know...Basically, if you ever carried your MOPP gear and mask...it's that big but way more functional and prettier. Can fit a a fair sized insulated bottle vertically, numerous ammo pouches etc.