I have a like new Hennessy Explorer Deluxe Asym Zip w/snake skins. Bought it late last summer and slept in it only three times now. Absolutely like new, no stains, rips, punctures, anything whatsoever. I simply cannot get my feet comfortable due to a medical condition and calf pressure keeps me from a sound sleep. I think a WBBB may be my answer with the footbox. Anybody with a WBBB double layer 1.7 or 1.9 in the same condition and age as mine who may be interested in a trade pls message me. Cheers.