At Lowes or HD. You can get it right from the manufacturer...

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"j" ganz @@
www.sailnow.com

wrote in message
...
More expensive than where?


Yes, possibly. If you need a lot, it'll be more expensive there by
far. Thin aluminum and -as I recall - bubble wrap? Or maybe it was a
closed cell foam and aluminum?

Find it at Lowes and Home Depot.