I’ve had my Sea to Summit ultra-sil compression dry sack for going on two plus years now and I love it.   I take this thing on every trip no questions asked because it’s a great piece of gear to have with me at all times.   It’s waterproof, tough, lightweight and versatile!

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My primary use for it is to carry my sleeping bag.  It’s a compression sack so it will compress the bag really small if you want to carry it in your pack.  But, it’s also waterproof so I can lash it to the outside of my pack if I want and I won’t worry about it getting soaked.   And for as light as it is, it’s very tough material so I don’t have to worry about it tearing if I lash it to the outside of my pack.  Never store your sleeping bag in a compression sack!  A really cool thing about these sacks is the fact that they are made partially of waterproof breathable material so it’s easier to evacuate the air.  This makes compressing them to a small size much easier.

They sell these at just about any good outdoor retailer, as well as Amazon and some other places and they generally run between $25-$50.  It’s a staple in my pack at this point and I wouldn’t consider leaving home without it.  They sell a few different versions of it but I have only used the Ultra-Sil Event sack.

Sea to Summit Ultra-Sil eVENT Compression Dry Sacks

Sea to Summit eVent Compression Dry Sack