Story began from——
1. 2017 Aotai Mountain Tragedy

The challenger encountered a blizzard and had to set up a tent to avoid the wind and snow (wind cooling benefits). However, the first step in traditional double decker tent construction is almost always to first spread the inner tent on the ground and then wear the tent poles - resulting in a high probability that the first step cannot be easily completed in this strong wind.
1.2 After laying out the inner tent, due to the constant shaking of the tent pole caused by the wind, it is easy to fall out of the fixed holes at the four corners of the tent. Then, wearing gloves to insert the tent pole into the fixed holes will also make the efficiency extremely low due to the shaking. Similarly, hanging the inner tent hook onto the tent pole later on.
1.3 After overcoming various difficulties and finally reaching the time to set up the external tent, the strong wind will cause the tent to swing violently like a flag, which will greatly prolong the speed of building the tent and even make it impossible to complete.
2. We were hit by a rainstorm on Jinlan Ancient Road, "falling dogs"
It was already very dark, and we went to the camp under the headlights. The original drizzle suddenly turned into a rainstorm. Under the rainstorm, the jacket became a decoration, and ice and rain came from the cuff and neck. The companions were in a hurry to set up their tent, but the wind and rain were strong, and inevitably the inner tent was drenched in rain. While searching for the contents of the bag, the sleeping bag was also partially soaked. Finally, we got into the wet tent and shivered through a cold night.
You can see videos or articles online that teach people how to build tents in the rain. The core is to set up an external tent first, and then an internal tent The key to this method is to be proficient and skillful If you are not proficient or have poor lighting, you will be affected by storms. The wind cooling effect, water cooling effect, and high altitude cooling effect can quickly put you in danger of losing temperature

Comparison Table of Air Cooling Effect
3. The Encounter of Summit, Author of 'Fatal Adventure', while Drifting at the Source of the Yellow River

Fatal Adventure page 59
High altitude, low temperature, and lack of oxygen reduce human sensitivity and speed. A simple problem in the Jiangsu, Zhejiang, and Shanghai regions may become a problem in cold environments.
Redefining——
To quickly build tents and protect personal safety in harsh environments (strong winds, low temperatures, rain, and snow), we must redefine the tent construction process and simplify it.
Cancel the first step: there is no need to roll out the internal account;
Simplify the second step: without the need for poles and hooks, straighten and install the poles. The poles are slender and the impact of wind is greatly reduced. Simply install the end of the tent pole along the fixing ring to the connecting holes at the four corners of the tent, and both the inner and outer tents can be built simultaneously;
Cancel the third step: there is no need to build an external tent, and then simply fix pegs and open the air window according to the situation to complete.

Dynamic diagram of fast tent construction in pursuit of wind
Greatly accelerating the construction speed, the speed in strong wind environments is more than 5 times that of traditional hiking tents, and the speed in mild environments is also more than 2 times. Not only that, but the storage speed is also more than twice.
Also, because the internal and external tent are built synchronously, whether it is built or stored, the waterproof external account is always located outside the internal account, which can maintain the dryness of the internal account during construction or storage, and maintain a comfortable and warm sleeping environment.

Exploring Details——
The sourness of hiking is something that I believe everyone who has experienced understands.
“So can we let our backpackers stretch on their own? "Suggested by a friend who had learned sports recovery, so we sewed the stretching diagram into the storage bag.

Stretching diagram
More details and surprises await you to discover!