Versatile and robust - the Ultra-Sil Nano Tarp Poncho from Sea to Summit. The poncho is a rain jacket and backpack cover in one and can also be stretched over the sleeping bag as rain protection at night. The 15D Ultra-Sil material is extremely lightweight and amazingly robust. The siliconized material is waterproof, the seams are all glued so that no moisture can penetrate even at this weak point. At the corners, the poncho has special attachment points for guy ropes so that it can also be used as a tarp. The cut of the poncho is designed so that even larger backpacks can easily be carried underneath. This guarantees that the equipment is protected from all storms!