Yes, this is constructed of Heavy Duty Canvas. It's made with premium grade, Hydra-Shield, 100% cotton duck canvas. The tight weave and silicone finish make the canvas watertight yet breathable, minimizing condensation and mugginess. Go ahead and touch the inside walls during a downpour this canvas will not wick water. As long as you season the tent (set it up and soak it with water) before you use it for the first time, then it will remain waterproof.