Well, I'm hoping it will be small enough to put in a handle bar bag. The one I like the most, for example, is 4x15 inches. It's so warm here I won't need a sleeping bag. I have a decent sized trunk bag with small panniers, but am thinking about an actual frame-mounted rack as opposed to seatpost-mounted which I have now which has a weight limit of 20#. OTOH, I'm not going touring (yet) just an overnight as part of a double century.

Nanci