Waterproof/breathable sleeping bag shell Feathered Friends used in the past. Anyone remember the name?

PTFE Lite ?

Last time I was in their Seattle store, it was Pertex.

Neither of those ring a bell.

The material in question was used ~15 or more yrs ago. Can't believe I have forgotten what it was called.

I "think" they also used EPIC, but that is more highly water resistant and breathable than true WPB.

They also previously used Pertex Endurance. This had durability issues, because it uses a very thin, air permeable coating of PU.

Dryloft ?

Try contacting David Gardner on here. He has an old wpb feathered friends bag.

Why don't you try calling or emailing the source… FF

billy

Dryloft. I think that's it! Thank you!!

Cause that would be the smart way of doing things. ;-)

Thanks, Billy. I will do that just to verify.

That's the old name for Windstopper-use in sleeping bags.

Looking back to 1998 I believe the first waterproof/breathable fabric they use was call PTFE Lite. It incorporated a new PTFE from BHA Technologies and gave a better resistance to water entry that DryLoft, while nearly equal breathability. I also believe EPIC by Nextec was another option but did not have the fabric characteristics as the PTFE Lite.

Taslite PTFE was use reinforcement patches on the clothing I believe, that provided waterprofness and breathability while the heavier denier of the fabric improved abrasion resistance.

Hope this helps.