The Observer series of bivy bags has long been setting trends among field shelters, which have been appreciated by many armies in Europe, including the Polish army—although in our case the military uses a typical unlicensed copy made of lower quality materials. Although Observer tents are definitely expensive, this results from the renowned manufacturer, the location of factories in Europe, and the use of advanced laminate with original Gore-Tex membrane, coated on both sides with polyamide, while standard tents more often use polyester. This translates into much greater damage resistance for the Observer compared to traditional tents, while also providing lasting waterproofness without the "plastic-bag effect." Setting up the Observer doesn’t require tent stakes, and the process itself is simple—especially since you can pack it together with the mat and attach it to your backpack, so it doesn’t take up space or soil the inside of your luggage.