How to buy a sports water bottle

Anyone who has had experience in wilderness activities probably has a deep impression of the dependence on water for outdoor sports. Sufficient water supply is the most basic condition to ensure the quality of outdoor life and physical health. Simply relying on the mountain and water will not enable you to quench your thirst at any time, but will consume more energy and bring health hazards. Therefore, in any book about outdoor life, how to obtain, transport, preserve and rationally distribute limited drinking water is an important chapter. Because in many cases the availability of water is the key to the success or failure of an activity.
When it comes to water bottles, we can't leave out SIGG.
SIGG is now the world's first brand of sports water bottles, produced in Switzerland, the processing of this water bottle is very special, by a piece of aluminum (aviation aluminum alloy, ultra-lightweight, strong, not cracked) extrusion and stretching and made through a complex process.
The kettle has several special features:
First, the kettle has a special rounded reinforcement at the bottom, which prevents the kettle from being seriously deformed when it is dropped.
Second, this kettle realized a non-equal wall processing technology, that is, the thinnest wall of the pot and gradually increase the thickness of the pot to the mouth and the bottom of the pot, which not only reduces the weight of the pot itself, but also more rigid.
Third, another special point in its coating process, SIGG company uses hot melt spraying method, that is, the coating material is heated and melted and then sprayed on the inside of the kettle with electrostatic spraying method, so there is no taste. SIGG inside the surface of the coating is not only hygienic and durable, but also can be used for carbonated, fruity drinks, (because these two kinds of drinks are very easy to corrode the body of the kettle), so other kettles do not dare to promise.