... water, long time for use.cotton canvas good for health. Triple canvas tentsfor camping,for 6 person,5mx12m, 5mx10m, 5mx8m, 5mx6m ... % cotton canvas tents and PVC coated canvas tents made of three-anti canvas (waterproof, anti-mildew, fireproof) use for construction, military ... in our products please contact. For 6 person 3M*4M triple layer cotton canvas tents