Our Elite tents are no holds barred, lightweight shelters. Using lightweight, fully Siliconized Nylon fabrics to repel water, we were able to reduce weight, greatly increase strength, and offer better UV resistance. Our Elite fabrics do not to adhere to the FR standard CPAI-84, limiting your exposure to FR chemicals. This tent is not factory seam sealed. One trade-off that comes with this awesome fabric is that it cannot be factory seam sealed. It's a bit of work that you'll have to take on, but self sealing your tent is lighter, far more reliable, and more durable than seam tape in the long run.