The Military Surplus German Gas Mask Bag has a polyester/cotton twill exterior, Olive Drab rubber lining, removable adjustable cotton web shoulder strap, and an adjustable rubber closure strap. 10.8-liter capacity. Grade 2 condition. Grade 1: Excellent to New/Unissued - These bags are 100% authentic and are rated in excellent to new/un-issued condition. Product may be outside of original manufacturer's packaging but they will show minimal or no signs of wear.Grade 2: Good to Very Good - Products may show signs of light wear or fabric may be faded but they retain 100% of their original functionality. Material may be lightly faded and small stains may be present. Grade 3: Serviceable to Fair - Products show signs of heavy use and material will be faded/stained. Seams may be frayed and material may have small imperfections but all imperfections will be less than 1/2" in size.