Specially formulated rubber mask Fully adjustable for a snug, comfortable fit Impact-resistant cylindrical plastic lenses Nato standard 40mm threaded filter canister housing Compatible with military canteen threads The 40MM NATO filter comes standard with this mask. Includes a Canteen tube spout to allow for hydration without removing the mask. The mask bears the number 1 on the front forehead, meaning product size for adults, men and women 100% Genuine Authentic Model: M-15. I check myself each product and sell only the best quality products. Our products are carefully inspected.
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