Insulated. Lightweight. there is a slow leak somewhere but I can't track it down. Possibly leaking through the air valve. It holds hair for 4-8 hours but is floppy in the morning. I'll keep looking for the leak and try to replace the air valve seal to see if that fixes it but as of now it's leaking very slowly. There is one patch on the exterior. Not sure if the slow leak is coming from the air bladder. Hopefully not, ideally it would be leaking from the valve and is fixable but it's so slow it's hard to detect. I'll see if I can fix it though and will update the listing
eBay