Features required for expandable luggage for travel

From the perspective of capacity: The luggage space needs to have more flexibility, as well as a retractable high-rise, allowing the luggage capacity to instantly expand by about 5CM, which can increase the volume by about 16%. It has strong expandability. If you go shopping and travel, it is a great choice to bring expandable hard shell luggage.
From the perspective of weight, a typical trolley box has a slightly stiff feel when pressed against its frame by hand. The specialized term for luggage is a honeycomb frame, which is actually made of hard plastic with holes in the middle, similar to a honeycomb. After a hot and cold weather, such boxes are prone to cracking and oxidation. Scalable trolley case, its inner layer is made of imported EVA foam material composite, because EVA has properties such as softness, waterproof, good elasticity, and chemical corrosion resistance. The four sides of the box are fixed with steel wires, making it light and sturdy. Therefore, the soft box is also lighter when weighing luggage, leaving more space for the travel station's merchandise. On average, it is about 1.5KG lighter than ABS/PC boxes!
From the perspective of temperature: In the north or during cold winter, hard boxes are prone to cracking after freezing outside, while soft boxes are not affected by temperature. If you're in the south, there's no need to worry. The weather in the south is still very good.
From a storage perspective, the expandable luggage is more suitable for storage in small spaces, such as student dormitories and work dormitories.