Designed to be pulled over our "Small Tactical Backpack" or "Scout: Small Tactical Pack w/i Internal Support" in case of sudden downpour, or to be used in storage to keep bag dust free. Bag folds into itself for easy, compact storage while not in use Made from: Oxford Nylon Product Weight: 70g Dimensions: 120mm X 100mm X 50mm when folded Will fit over a bag approxiamtely 450Hx250Wx350Depth (mm)