The difference between 420D and 600D, d of Oxford cloth refers to denier, which is a unit for measuring the density of textile fibers, showing the weight of fibers per 9000 meters in grams (ie, the lower the denier, the more fiber Fine). Formula D = G / L * 9000. That is, fiber weight / fiber length * 9000. Common in the material strength index of backpack fabric. Generally used 450D, 500D. Materials higher than 500D are generally used for wearable parts. Such as backpack bottom.
The larger the thickness D of the yarn branch represented by D, the thicker the yarn, the thicker the fabric! The higher the cost!
Most of the Oxford cloth is made of chemical fiber, and the fiber of the chemical fiber is represented by D.
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The difference between 420D and 600D Oxford cloth:
D stands for Denier, a fiber density unit, 600D, 210D, 420D are the material numbers of the fabric. Refers to the thickness of the fabric, thickness, density, such as 600D nylon cloth is stronger than 420D nylon cloth, thick, 600D denim should be quite thick.
Cycling Mask
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Dust-proof and smog-proof sports cycling mask, with comfortable to wear and stylish appearance
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Five layers of activated carbon filter layer to filter harmful substances in the air
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Widely used in outdoor activities, such as running, jogging, cycling, horseback riding, hiking, skiing, snowboarding.
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Cycling mask is removable and washable, please remove the filter when cleaning (can not clean the activated carbon filter)
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Normally, it is recommended to replace the filter every 30 days. If the sport mask is frequently used, replace the filter when it becomes black or damaged.
Cycling face mask, Sport mask, Sport face mask, Neoprene cycling face mask, Cycling mask with filter
Shenzhen Hongxiangwen Hook&Loop Co.,Ltd , https://www.hxwsports.com