Sigg neoprene pouch widemouth black 10l this pouch made of insulating material will keep your sigg bottles protected bottle not included sigg information sigg water bottles are made using single piece impact extruded aluminium with no seams ensuring they are extremely durable the special manufacturing process makes sigg a high quality lightweight and virtually unbreakable water bottle made from one piece extruded aluminium construction hygienically coated inside to help alleviate