(Tri-Layer Walls cannot be added to Premium Model RoofTop Tents) Tri-Layer Removable Insulated Walls make a great addition to your existing Adventure Series Tent. Made from 2 layers of 300D poly-oxford sonic welded with a layer of 90g/M2 poly-fil inside! If you have an older model make sure you check to see that your tent comes with the fabric loops or loops with plastic rings first. There should be at least 5 loops across the top rear, top middle and top front on the inside of your tent. This system is a one piece unit with a ceiling and walls and has matching windows and pockets just like the inside of your tent.