... 3.weight:500gsm 4.thickness:0.4mm waterproof boat cover fabric Productwaterproof boat cover fabricMaterialpolyesterRegular size2x3m, 3x4m,3x5m, 4x5m, 4x6m, 5x8m, 6x8m, 6x10m ... and lighter than general canvas UsageFor amusement vehicles,truck cover,trailer cover,equipment cover,agriculture,emergency shelter,camping tent,windbreakers,sunlight resistant,etc ...