For outdoor activities, waterproofing is a very important feature in a backpack, as it can keep your belongings dry in the rain.

Material Classification

The common waterproof backpacks on the market are mainly made of the following materials:

1.Nylon fabric

Nylon fabric is a very durable and lightweight material that is widely used in outdoor sports. The advantages of this material are good waterproof performance, easy to clean and dry, and good abrasion resistance and durability.

Some high-end waterproof backpacks, such as those made of Gore-Tex, are also often made with nylon fabric.

2.PVC material

PVC material is a very good waterproof material that can effectively prevent water from entering the bag. The disadvantage of PVC is that it is thicker and less breathable, and it is also easier to scratch.

Therefore, PVC waterproof backpacks are suitable for use in bad weather, but not for long-term use.

3.TPU material

TPU material is a relatively new material, it has good waterproof and durability, the advantages of TPU material are soft, lightweight, durable, and can resist UV, oxidation, grease and chemicals.

Therefore, it is widely used in the manufacture of various outdoor equipment, including backpacks.

In addition to the above materials, some waterproof backpacks also use special waterproof treatment technologies such as PU coating and silicone coating.

These treatment techniques can form a waterproof membrane on the surface of the backpack, effectively preventing water from seeping into the bag.

Even with the best waterproofing materials, some moisture may still get into your backpack if it rains hard. Therefore, when choosing a waterproof backpack, you may want to consider a double-layer design or adding a waterproof sleeve or rain cover to improve waterproof performance.

Key points

When shopping for a waterproof backpack, you need to consider the following three factors:

1.Waterproofness of the materials

The waterproofness of different materials varies, so when you buy a waterproof backpack, you need to pay attention to the waterproofness of the material.

Nylon fabric, PVC material, TPU material have certain waterproofness, but PVC material is thicker and less breathable, and the price of TPU material is relatively high, so you need to choose the material according to your needs and budget.

At the same time, it should be noted that different brands and models of materials may be different, so you need to learn about the material and performance of the product.

2.Waterproof treatment technology

In addition to the waterproofness of the material itself, the waterproof backpack can also use special waterproof treatment technology, such as PU coating, silicone coating and so on. These treatment technologies can make the surface of the backpack form a waterproof membrane, effectively preventing water from entering the bag.

When buying waterproof backpacks, please be aware that the waterproof treatment technology may vary from brand to brand and model to model, and you must carefully understand the product's waterproof treatment technology and performance.

3.Design details and accessories

You need to pay attention to the design details and accessories of the backpack, including straps, zippers, seals when you buy a backpack.

When choosing a waterproof backpack, you need to consider the waterproofness of the material, waterproof treatment technology, and design details and accessories. Choose according to your needs.