The sack is a great idea to use for a mat, so you don't blow moistured air inside. This one is very big but you end up not using most of it's volume. Also the nozzel doesn't have the best solution. It is basically a permanently open hole in the sack, which makes it not really usable as a waterproof sack. Moreover, seems like it will loosen quickly, but that is to be seen.
Verified purchase: Yes | Condition: New
It ought to include provision to seal the air intake off when not in use so you can use it as a fully waterproof rucksack liner
Verified purchase: Yes | Condition: New
Good to have with a Thermarest mattress as it pumps it up in 2-3 go's. Very handy to have after a day of walking in the mountains when you haven't got a lot of energy left and just want to set up camp for the night. Makes life a lot easier! So it's worth the money even though it isn't cheap for what it is.
Verified purchase: Yes | Condition: New
I only bought this because it does two jobs, stuff sac & as a back up for the pump. It is expensive but good quality.
Verified purchase: Yes | Condition: New
I do not like to use it
Verified purchase: Yes | Condition: New
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