Compression sack for mid layer

Can anyone recommend a small compression sack that would work well to carry a mid layer fleece jacket and possibly pants?
I like riding with the non insulated shell but when the temp drops and or you get stranded it sure would be nice to have that extra layer along.
They are just so bulky to put in a backpack or tunnel bag. Trying to keep things as compact as possible.

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Those look like they may be the ticket. I was thinking a bag with straps, but these would be waterproof too.

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