Hermetic bags and hermetic bags: features and selection rules

Traveling to hard-to-reach places can be an unforgettable experience. But it is very important that all this time things remain in order and clean. Therefore, for swimming on a stormy river, it is advisable to choose sealed bags and trunks.

Sealed bags can be used:

• when transporting various things, clothes and sleeping bags in boats;
• when packing the most important property before putting it in a backpack;
• when carrying wet swimming equipment.

Using a hermetic bag or hermetic bag is not only for tourists. Fishermen and hunters also need similar equipment. In addition to protecting against water, the impervious packaging also keeps out dust and dirt. Therefore, such items are valuable even for those tourists who make trips to dry places. The volume of airtight bags can vary greatly: there are storage for documents that are attached to the belt, and large packages up to 150 liters.

First of all, you should decide on the required size of the package. So, if you plan to choose a means of protection for documents, money and a mobile phone, it makes no sense to buy a bag with a volume of 300 liters. Each trip has its own requirements and nuances. The next step is to determine the purpose of using the bag.It is one thing if you plan to protect things only from rain, and quite another if it is likely to fall into the water. In any case, maximum protection is needed to protect electronics, products and sleeping bags. But you also need to consider the difference between fresh and salt water. Some models retain their tightness only when in contact with fresh liquid, and it is undesirable to take such hermetic bags and hermetic bags at sea.

Having decided on these points, you need to figure out how long the bag will be used. For those who plan to often go hiking in hard-to-reach places, durability and reliability are especially important. It is better to buy an expensive product once than to buy new copies often. For fishing or periodic sports trips, you can limit yourself to a relatively inexpensive bag or trunk. The main thing is that he copes with his task.

As for the reliability of sealed packaging, this indicator directly depends on the geometry of the structure. The fewer corners, the lower the risk that the product will rub or wear out, begin to let moisture through. Therefore, the best option for long-term systematic use would be hermetic container of cylindrical shape.

Rubberized fabric, despite its lightness, does not hold water well, especially if it is used for a long time or often. Kerington fabric and other gaseous materials have similar characteristics, but they are even worse repaired. For rafting, it is best to choose airtight tesa bags. Nylon is also sometimes used. It is impregnated with silicone or polyurethane, and a rather light and thin product is obtained.

Bags deserve a good reputation Stream. For their manufacture, PVC has been used for a long time. More specifically, the material is purchased in France and South Korea. Its thickness is 5 layers. Although the product is very heavy, it is mechanically strong and lasts a long time; but we must remember that PVC is harmful to the environment and cannot be recycled.

The specific weight of the Stream bag is 0.65 kg per 1 sq. m. Zippers and buttons are not provided. For folding the twisted valve is used. Similar solution:

• gracefully;
• technically simple;
• very reliable.

To close the valve, you need to twist it 3 turns. Since the bags fill with excess air, even if dropped into water, they will stay afloat for a long time. Air is removed using a side valve. Important: the manufacturer advises leaving at least 25% free volume inside.

A positive feature of this waterproof bag for water sports is the use of fastex fasteners from the company Duraflex. They are large enough to use the bag could be in gloves, mittens. The straps are sewn on as tightly as possible. In the manufacture of seams, double gluing is used, which helps to make the structure airtight without disturbing the fabric base.

A good example of a sealed bag is the model Dakine Waterproof Duffel. Its seams are particularly reliable, and the design itself was originally thought out for fishermen and novice tourists. The Duffel bag opens wide, allowing you to quickly take out and put everything in. The dimensions of the model are 0.58x0.41x0.205 m. The pressure bag perfectly adapts to any cargo.

If you need to choose a waist bag, you can pay attention to the model ORLAN 10 l. The top is covered with reinforced PVC. The Quick Lock system guarantees reliable neck protection.

A more capacious option - a hermetic bag Readily 24l. Its total mass is 0.049 kg. Dimensions - 0.6x0.28x0.17 m. For the manufacture of the bag, the manufacturer used a particularly strong and lightweight Cordura material, the seams are glued with high quality. The manufacturer positions its product as the best choice for hiking and outdoor recreation.

An attractive alternative can also be a hermetic bag "Free wind" volume of 60 liters. In the manufacture of the trunk, metal half rings were used. As a result, the preservation of the basic qualities of the bag is guaranteed even when the load is 2-3 times higher than the declared values. Thanks to the half rings, you can also securely attach the trunk to the boat for the duration of the rafting. The mass of the bag is 1.2 kg.

Hermetic bag Triton with a volume of 40 l is made of a special fabric nylon-taffetta. A similar size model made of tafetta fabric is also offered by the Free Wind company. The water resistance of the bag is 5000 MBC. It can be used as a waterproof insert in a backpack or as additional protection for documents, especially important things. The overall height of the bag is 0.75 m.

If you need to choose a dry bag with a volume of 90 l, you can pay attention to the model adventure. The manufacturer claims that in this package all things are protected from moisture very well. It is designed for hiking and camping enthusiasts. In the manufacture of the hermetic bag, pure polyester was used.

In the next video you will find a brief overview of the hermetic bags (hermetic bags) "Orlan".