Inherently waterproof, Dyneema Composite Fabric has a very high strength-to-weight ratio and doesn’t absorb any significant amount of water—so you won’t have to carry extra weight if it rains. Because the material is made from Dyneema threads, the tent stays taut all night and won’t stretch or sag if it gets wet. The seams are stitched and then taped watertight, and the tie-outs have bonded reinforcements for high strength (no seam sealing necessary). Finally, tape sticks well to Dyneema Composite Fabric, so any damage can be patched in the field. On the Duplex, the floor material is more than twice as thick as the canopy material, making it more resistant to punctures and abrasion.