Both the Ripstop and Taffeta versions are normally very similar in price and both are readily available. I suspect the heavier taffeta is used to give the quilt the same feel as a normal bag. Sleeping bags normally use taffeta inside rather than ripstop.

Edited by dandydan on 11/18/2010 16:58:20 MST.

ALCON,

Comparing quilt width statements to a generalized width for JRBs at 48 inches is quite in accurate... Almost two years ago the JRB Sierra Series of quilts, 52 inches thru the entire body area and once passed the hips tapering to 42 inchs, was introduced specifically for the ground community...As far as top quilts are concerned the Sierra Series are by far the most common top quilt size...

For the fans of over stuff...almost all cottage manufacturers offer overstuff, including JRB...

Pan

I'd love to see some user photos of this quilt!