Commodity name: Swing boat cover Product size: 210Dx286x122210Dx286x 200420Dx286x 122 Commodity color: black, gray, beige, brown Material composition: 210D silver-coated oxford cloth/600D silver-coated oxford cloth/420D silver-coated oxford cloth Gross weight and net weight: 0.4/0.8kg Product features: This product is made of Oxford cloth coated with silver fabric, which is snow and frost-proof in winter, sun-proof in summer, waterproof in rainy days, and dust-proof. It has many functions and can be used in all seasons. Small knowledge of fabrics: the difference between T and D, T represents the density of the yarn, the larger the T number, the denser the yarn. T--The T in the fabric, generally refers to polyester taffeta, is a nylon, silk-like fabric, generally used as the outer and inner tents of tents, light and strong, such as the numbers in front of 170T, 190T, 210T It means the sum of the number of warp and weft yarns (density) in 1 inch (2.545CM), which is actually a density unit. You can also simply think that the larger the number before T, the heavier the fabric of the same area. D represents the thickness of the yarn, the larger the D number, the thicker the yarn. The larger the number before D, the heavier the cloth of the same area, such as 210D, 300D, 420D, 600D Oxford cloth.