It is the pressure limit of millimeters of vertical water column that a square millimeter of the tent's fabric can withstand without being penetrated by water. The higher the number, the greater the tent's resistance to rain.

5000mm

Tents with a waterproof rating above 3000mm withstand storms, as shown in the table. They are used in winter.

1

It does not have the classic poles, but air tubes that inflate with a pump in a few minutes. It has a safety valve to prevent bursting from the heat of the sun and is very resistant to wind, as its frame cannot break.

Polyester 75D

D stands for Denier and it is a unit of measurement for the thickness of a yarn. A small denier means a fine fiber, while a larger denier means a thicker, more durable fiber. To calculate the Denier of a polyester fiber, a piece 9,000 m long is weighed, and the resulting grams are the Denier of the fiber. Therefore, if a polyester fiber 9,000 m long weighs 210 g, its Denier is 210

The weight of tents is usually referred to as the minimum weight (the combined weight of the fabric and frame), but may not include other accessories in the package such as stakes, carrying bag, ropes, etc.