Sealed bags and pressure bags are a mandatory part of protective equipment for every lover of water travel and rafting. Thanks to the packaging, valuable items, equipment or documents can be saved if the boat rolls over. Having in your arsenal of vacuum bags of different sizes, you can fall asleep in a dry sleeping bag or change into dry clothes. Using the accessory is quite simple. It is equipped with a special valve through which air is discharged. In this case, the bag is tightly twisted.
Types of sealed packaging
Today on the shelves of shops you can find several types of sealed packaging:
- PVC pressure bags, which are characterized by increased strength.
- Lightweight and compact accessories that use taffet fabric. They have a polyurethane coating.
- Drybike equipped with straps, which allows you to carry it on your back.
- German backpack.
- Hermobaul with a wide entrance and handles.
- Thermocovers for guitar.
- Waterproof bags for phones, documents and more.
- Germocofra with a soft polyurethane tab for a first-aid kit and a camera.
Each of the accessories has a different size. It’s best to give preference to a little more so that you can twist it tight enough.
Features of hermetic bags
Vacuum bags are designed to store and transport things, as well as equipment. They are equipped with a round bottom on one side. On the other hand is a tight tightening. Products are made of waterproof fabric. Also on store shelves you can find models equipped with transparent plastic inserts. The seams of the bags must be ground using a special technology and glued, so they can be used in any weather.
The materials from which the hermetic bags are made
As for the materials used in the manufacture of sealed bags and sacks, they are divided into two groups: impregnated fabrics and PVC. The latter are heavy, however, puncture resistant and tear resistant. Large pressure bags and small bags for electronics or documents are made from such material. Such a sealed bag can be transparent. In addition, if necessary, the PVC pressure bag can be restored with patches.
Also in the manufacture of products used nylon (for example, from the manufacturer Diner), coated with polyurethane or silicone impregnation. Its thickness is indicated by the abbreviation, for example, 30D, 70D. The larger the value near D, the thicker and stronger the fabric.
In addition, on the shelves of shops you can find waterproof bags made of polyamide fabric, which is distinguished by a special type of weaving of fibers. Thanks to this, it was possible to achieve high strength material. For example, the manufacturer Codur makes the fabric threads from cut and twisted fibers. Thanks to this, it was possible to increase the abrasion resistance by 4 times, when compared with nylon.
Sizing
There is a huge assortment of tourist hermetic packaging of various sizes. Each product performs its tasks. The volume of such bags is measured in liters. However, in addition, the manufacturer can add a tag with the designations: XXS, XS, S, M, L, XL, XXL, etc.
A five-liter pressurized bag is enough to pack spare dry items, underwear, tracking pants, socks and T-shirts. You can also store electronics, chargers for mobile devices, a camera, a first-aid kit and hygiene products. If we talk about a 10-liter accessory, then everything that fits in a five-liter bag, plus replaceable clothes, will fit in it. It is also ideal for storing a sleeping bag on synthetic insulation.
If you prefer to travel in winter, then choose a 20-liter pressure bag for yourself. It will fit a winter sleeping bag. Also, products of this volume can be used during a long summer trip by packing clothes in it.
A water bag, the volume of which is 30-40 liters, is usually intended for storing clothes of two people, if it is a summer wardrobe, and for storing winter clothes of one person. In addition, you can put all the equipment in it, and also use it as an insert in the backpack, which will provide perfect protection of all objects from moisture.
It is best to use several sealed bags and bags of different sizes than one large one. This is much more practical and allows you to pack things by type.
Some useful elements
In addition, these bags have several useful elements that are sure to be useful during the trip:
- Rings. Thanks to them, the pressure bag is very easy to mount on a boat, kayak or binds to other bags.
- Lanyards for carrying. They allow you to conveniently carry large packages and are a bit like backpacks. The straps can be removable.
- Valve for air discharge. It makes it possible to easily release air from a closed bag and the user does not have to simultaneously press the product while spinning it to make it more compact. Typically, the valve is mounted on large pressure bags.
- Special inserts made of rubberized Hypalon material. Thanks to him, he will be able to reliably close the trunk.
- Transparent window. It allows you to see what is inside the bag, which is very convenient. Also in this place you can put a mobile phone or navigator.
- Special loops for tying. They are an addition to the rings. For them, you can attach the bag to the side of the catamaran, kayak, etc. Usually they are installed on sealed bags or PVC bags.
Remember that thanks to hermetic packaging your trip will always be pleasant and your clothes dry.
Conclusion
Smaller pressure bags and accessories are ideal for transporting items and equipment. Manufacturers use only waterproof materials of different thicknesses in their manufacture. Due to this, the things located inside will not get wet in case of rain or kayaking overturning. With such useful products you can go on long hikes in winter and summer.