The Cinch! has a hydrostatic head of 4000mm.
To label a tent waterproof, it needs to meet a hydrostatic head requirement of at least 1000mm.
I don’t know where they found this info, but it’s one of the claims on their FAQ page. (Not sure if this applies to British tents only.)
The higher a tent’s hydrostatic head, the more waterproof the material it’s made from.
Don’t take your Cinch! for a swim though. There are many factors that make up a tent’s actual waterproof level, such as how the tent is put together. Read the Crua Hybrid article for more info.
What’s the hydrostatic head of other tents? Let’s take a look…
|Hydrostatic head (mm)|
|Quechua 2 Seconds||See below *|
|Vango Pop DS 200||3000|
The Cinch! beats all the other tents in terms of waterproofing. Not only do they use a material with a high hydrostatic head number, they also double tape their seams to further prevent water from coming in.
* Quechua makes it clear on their site that their 2 Seconds model’s seams are not sealed and does not provide full waterproofing.