Well.. I missed point 1.. Posted by: waterbearer on Mar-12-13 2:42 PM (EST)
of your query.
Why not down?
You're clearly a paddler, you should know how to keep stuff dry. Nothing compresses and packs as small as down - just about as warm as you get get for the weight.
I'm 6'1", wife 5'6. Years ago, I bought 2 mummy down bags that zip together and after zipping together they really become a big-semi rectangular. 6' 6" size for me, 6' for Mom. Quite roomy for 2 - no need for the mummy hood - just slide on down.
When I paddle solo the 6'6" foot bag is plenty roomy.
When I looked recently, if you're looking for shoulder room, Marmot has about the best width I could find in a down bag.
I paddle overnight in the boat frequently - and while synthetic was my first bag - the last 25+ years it has been down. Keeping it dry is key - obviously.
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