70%/30% wool/synthetic wool. Dry clean only. Very warm and comfortable blanket. Low heat release. Can be used for both indoor and outdoor use. Wool has low rate of flame spread, low heat release, and low heat of combustion. Wool is static resistant as the retention of moisture within the fabric prevents a build up of static electricity. Wollen garments are much less likely to spark or cling to the body. Olive Drab 70% virgin wool blanket.